Sunderland 1-2 aet

Independent:

Sunderland 2 Chelsea 1
Ki Sung-yueng strikes in extra time to knock Jose Mourinho's men out of Capital One Cup
Chelsea manager's priority is Monday’s trip to the Emirates in the Premier League as he makes eight changes to his side for Cup tie
Martin Hardy

It is why this match was another reminder that the current Chelsea is not his, not ruthless enough to see off Sunderland in the 90 minutes of normal time that were completely dominated by his team. Instead, Sunderland found glory late – twice.
First through Fabio Borini, with two minutes of normal time remaining, and then, at the very death, in the 118th minute, when Ki Sung-yueng kept his composure to drill a shot into the bottom corner of the Chelsea goal and take Sunderland to the semi-final of the Capital One Cup.
That had seemed implausible for most of the night. But then Jose Mourinho’s team are not ruthless enough, not by half, and for that, unlike his in first season at Stamford Bridge, there will be no League Cup to parade.
Mourinho had made eight changes to the side which beat Crystal Palace on Saturday. The priority by some distance remains Monday’s trip to the Emirates in the Premier League. For all their season so far has felt inconsistent and thus un-Mourinho-like, Chelsea will go above Arsenal with victory. The opportunity certainly ranked higher in importance than a Capital One quarter-final at a sparsely populated Stadium of Light.
There is not much faith left on Wearside in the midst of a campaign in which Sunderland have had as many managers as league victories. They had a penalty appeal turned down just past the half hour when Andrea Dossena’s left-wing cross appeared to strike the elbow of Cesar Azpilicueta. It would have been harsh. It certainly would have been against the run of play, with Chelsea dominant but toothless.
By the 12th minute André Schürrle, Willian and Frank Lampard had all tried efforts that did little to test Vito Mannone in the Sunderland goal.
That was how the first half finished as well, although there was a suggestion of more purpose, certainly from Willian, who in the 36th minute ended up with the ball back at his feet after starting a move on the Chelsea right. From 25 yards his angled drive, with a cluster of players in front of Mannone, went wide. That was also how another Schürrle attempt at breaking the deadlock ended, with a shot that was likewise always heading wide.
The lead came from much closer range, just 40 seconds into the second half. Cesar Azpilicueta crossed deep from the right into the heart of the six-yard area. Lee Cattermole, in his attempt to prevent Frank Lampard from getting to the ball first, could only bundle it towards goal, and over the line, despite Mannone’s effort to hook it away. Cattermole was later credited with scoring the sixth goal Sunderland have put into their own net this season. Their top scorer Phil Bardsley, the right-back Paolo Di Canio tried to banish, has scored three.
At that point Chelsea should really have ended the contest. It was certainly not through lack of opportunity that they failed to do so. Samuel Eto’o, with the goal at his mercy, shot wide. The same striker had a deflected shot strike the side netting and Kevin de Bruyne brought a fine save from Mannone with an angled drive. Lampard then shot just over the crossbar from 25 yards. Schürrle was next.
Incredibly, Sunderland’s season of struggle would be given a glimmer of light in the 88th minute, when substitute Fabio Borini drilled a shot into Mark Schwarzer’s goal to take the game into extra time.

Man of the match Schürrle.
Match rating 5/10.
Referee A Taylor (Cheshire).
Attendance 20,731.

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Guardian:
Sunderland knock out Chelsea thanks to Ki's extra-time winner
Sunderland 2 Chelsea 1
John Wardle at the Stadium of Light

Ki Sung-yeung scored a dramatic extra-time winner to send Sunderland into the semi-finals of the Capital One Cup on Tuesday night. Chelsea controlled much of the tie and were only two minutes away from the last four when they were pulled up short by an equaliser from the substitute Fabio Borini. And, Ki, another substitute, also left it late before finding space inside the area to put a low shot past Mark Schwarzer in the 118th minute.
Chelsea looked bemused at the end, uncertain how the match had slipped from their grasp after an own goal from Lee Cattermole had left them on the brink of claiming a place in the last four in normal time.
Many in a half-empty stadium were heading for the exits when Sunderland scored an unlikely equaliser after troubling Schwarzer only once throughout the tie. A shot from Jozy Altidore was blocked, but the ball fell to Borini, who steadied himself before steering the ball into the far corner from a narrow angle. Sunderland went on to dominate extra time.
Gus Poyet hopes this victory can be the defining moment that transforms his side's season, although the last Sunderland team who beat Chelsea on the way to a League Cup final in 1995 were relegated in the same campaign.
"The players were fantastic. They gave everything and worked together so well," the manager said. "At half-time I told them to keep believing, whatever happens. We have a way of playing and if we work together as soon as we get going, we create chances. That's fundamental – they must understand that they can compete with the top teams. We have already beaten Manchester City and Chelsea. We need to believe that, whoever we're playing against."
This weekend brings a key match against Norwich City in the Premier League. "The priority was always Saturday but we got the win and it gives us some belief, it is massive for the squad," Cattermole said.
Chelsea had taken the lead in the first minute of the second half with a goal awarded to Cattermole, the sixth own goal Sunderland have scored in 11 games, although Frank Lampard also got a touch as they challenged for the ball.
With £140m of talent on their bench, the visitors appeared to be cruising into the final four until Borini's equaliser. Nonetheless, the evening had started with a degree of encouragement for Sunderland. Poyet had joked that he had considered phoning José Mourinho to ask him to leave out Eden Hazard. He didn't make the call but got his wish. The Belgian, who had mesmerised Sunderland when Chelsea won 4-3 here in the Premier League a fortnight ago, was on the bench.
Others who figured in that enthralling seven-goal encounter were also among the Chelsea substitutes as Mourinho left out eight of the team who beat Crystal Palace in their last league game.
One of the absentees – Branislav Ivanovic – was enforced through suspension, guaranteeing Ashley Cole a return as César Azpilicueta switched to right-back.
Perhaps Chelsea were marginally weakened but they certainly were not weak, with Jamal Blackman, a 20-year-old third-choice goalkeeper from Croydon being the only non-international among their 18 players. Poyet, as he promised, resisted the temptation to tinker on a similar scale with his side, although Phil Bardsley – a scorer at both ends in the earlier meeting – was among three players omitted.
Nevertheless, Sunderland needed longer to settle into any rhythm, while Chelsea's early aggression produced only routine saves for Vito Mannone from André Schürrle and Willian. Samuel Eto'o was also allowed too much space on the edge of the area but was able to produce shots that only emphasised his lack of match sharpness.
The main danger to Sunderland came from the men ranged behind Eto'o. Schürrle drove a pass across the face of the goal in the 18th minute, with nobody available to tap it in. Willian went close with an angled shot after Sunderland's marking on the edge of the box was again negligent. Schürrle was similarly off-target five minutes before the interval.
It was a first-half in which Sunderland created little, although one break by Emanuele Giaccherini was promising before it was halted by David Luiz's cynical bodycheck. The yellow card was inevitable.
Andrea Dossena, the Sunderland full-back, was also cautioned and was a central figure in the only episode when Poyet's team threatened a breakthrough in the opening half. With 32 minutes gone, Dossena's cross struck Azpilicueta on the arm just inside the area. The referee, Anthony Taylor, decided it was accidental, despite being given lengthy guidance by the Sunderland captain, John O'Shea, on the handball law.
Poyet might have sensed during the interval that Sunderland could repeat their 1985 semi-final victory over Chelsea in this competition but was given a reality check within 38 seconds of the restart. That was how long Chelsea needed to go ahead as Kevin De Bruyne set up Azpilicueta for a cross that found Lampard sliding in with Cattermole. Both got a touch but the goal was awarded to Cattermole – a decision that will be disputed by Lampard. The referee indicated it had been awarded with the help of goalline technology, which should not have been needed as it was clearly over the line.
As Chelsea looked for a second, Eto'o dragged wide after intercepting from Craig Gardner. De Bruyne also went close with a shot that was deflected on to the roof of the net.
Cattermole did his best to emulate team-mate Bardsley's feat of scoring at both ends when he was responsible for a rare Sunderland threat in the 70th minute. They finally strung together passes down the left, creating the space for Cattermole to test Schwarzer with a shot that swerved in front of the Australian, who managed to beat it away.
Schürrle, who had been involved in most of Chelsea's best moves, was a threat again in the 76th minute with a shot that Mannone dealt with well. And, while Sunderland enjoyed more possession in the closing stages, there was little in the final third to make the 20,731 crowd – half the normal league attendance – think there was a route into the semi-final.
They were hardly encouraged when Chelsea were able to send on Hazard for the final minutes but he had to play far longer than expected when Borini took the game into extra time. Ki provided the coup de grace.

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Telegraph:
Sunderland 2 Chelsea 1 (after extra time)
By Alex Davidson, at the Stadium of Light

Ki Sung-yueng punished Chelsea's wastefulness with a winner in the second-last minute of extra-time to earn Sunderland, the Premier League’s bottom club, a place in the Capital One Cup semi-finals.
Jose Mourinho’s side took a deserved lead through Lee Cattermole’s own-goal – thanks to the use of goal-line technology in the first minute of the second half and, despite passing up a string of other chances, looked poised to coast into the last four.
But former Chelsea forward Fabio Borini drove in from a narrow angle in the 88th minute to force extra-time before Ki, a winner of this competition with Swansea last season, scored a dramatic late winner.
The familiar issues of profligacy in attack and carelessness at the back returned to haunt Chelsea as they slipped to their sixth defeat of the campaign. Afterwards Mourinho highlighted the defeat at Everton as having plenty in common with this loss but it was most similar to the 3-2 defeat at Stoke City, where Chelsea outplayed their opponents but failed to kill them off and were beaten by a team that did the simple things well.
The Portuguese maintained afterwards that no reaction to the result is required but he must acknowledge that his side need to overcome the worrying traits that have undermined them all season.
While Sunderland will be reinvigorated ahead of Saturday’s game against Norwich, Chelsea’s squad go into Monday’s trip to leaders Arsenal with two hours of running in their legs and no reward.
Lee Cattermole, who impressed in front of the Sunderland defence, feels the victory will be a significant boost to his team’s chances of survival. “There have been some positive ­performances throughout,” he said. “It’s a great win, it’s not in the league but it gives us momentum into Saturday and keeps our season alive. The priority was always Saturday but we played extra-time and that gives us belief, which is massive for the squad.”
Gus Poyet, the manager, said: “We have already beaten Manchester City and now Chelsea and that has to be the platform to go and win on ­Saturday. We have to play at this level and, it doesn’t matter who you play against, if we are like this we’ll become a very difficult team to play against.”
Mourinho, who had spent the build-up bemoaning his team’s frequent ties away from home, made eight changes for a competition he wanted to win without prioritising. His side, who had won their previous nine trips to the Stadium of Light, appeared more than comfortable from the start and strolled their way through the opening minutes.
André Schürrle gave the hosts an early scare when he was picked out by Willian’s cross-field pass and drifted inside Adam Johnson before hitting firmly at Vito Mannone. The Sunderland goalkeeper also did well to gather an awkward shot from Willian before Schürrle lifted a free-kick over the bar.
Frank Lampard also missed from distance, but Chelsea’s defensive vulnerabilities threatened to resurface as the visitors struggled to clear Seb Larsson’s crossed free-kick, with David Luiz blocking from Emanuele Giaccherini. The hosts also had a penalty appeal turned down after Andrea Dossena’s cross hit César Azpilicueta’s arm in the area.
Sunderland’s habit of giving the ball away in dangerous areas almost saw them punished when Wes Brown was pressed and coughed up possession before Willian’s low drive flew just past the post.
Schürrle, having scuffed wide, then gave the ball away at the other end. That allowed Adam Johnson to embark on a swaggering run past Lampard and into the area only for Gary Cahill to clear impressively.
The visitors moved in front after 38 seconds of the second half. Kevin De Bruyne slid Azpilicueta in behind the Sunderland defence and the Spanish right-back drove a cross over from right. Lampard slid in with Cattermole to help the ball over the line by about a yard.
There was a slight delay before Taylor indicated that technology had helped him to award the goal.
Chelsea should have had a second when Samuel Eto’o dragged wide after making an interception. The Cameroon striker’s next effort looped up off John O’Shea and wide. De Bruyne was then denied by a fine save from Mannone.
Chelsea never put Sunderland beyond reach but looked to be coasting to victory until Poyet’s side cut them open in the 88th minute.
After the visitors gave the ball away on halfway, Jozy Altidore surged into the area and had a shot blocked by Mark Schwarzer only for Borini to thump past Luiz, who was on the line, from a tight angle.
Sunderland did all of the pressing in the extra half an hour but even that looked destined to end equal until Ki burst inside a weak challenge from Michael Essien and drove in from the edge of the area.

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Mail:

Sunderland 2 Chelsea 1 (AET): Ki unlocks Jose's defence and scores winner with two minutes left in extra time

By Colin Young

Sunderland found the way to reach the last four of the League Cup for the first time in 14 years and preserved their astonishing record of never having lost to Chelsea in a knockout competition.
Now furious Chelsea boss Jose Mourinho, who had thrown the door open to his fringe players, may be tempted to slam it in their faces again after a humiliating exit.
Chelsea conceded two minutes from the end of normal time when on-loan striker Fabio Borini slotted home his second Sunderland goal. But the Portuguese will know missed chances cost his side a place in the semi-finals.
They conceded a fatal second goal two minutes from the end of extra time when Ki Sung-yeung struck as Sunderland, having weathered an almighty storm, went for a deserved winner.
Chelsea, winners of their previous nine games against Sunderland, had relied upon the sixth own goal of Gus Poyet’s reign to give them a second-half lead after their stars-in-waiting had squandered numerous opportunities to put the tie beyond the Barclays Premier League’s bottom team.
Lee Cattermole was the guilty party, 46 seconds after the restart, bundling into his own net as he tried to prevent Frank Lampard reaching Cesar Azpilicueta’s  teasing cross from the right.
The goal — the first to be awarded using technology in this competition, although it was well over the line — was cruel on Cattermole, who epitomises the workaholic attitude which might just see  Sunderland survive this season.
Until Borini’s late equaliser, the only serious save Mark Schwarzer had been forced to make was from a long-range Cattermole drive. And the biggest cheer of the night for the 17,000-plus Sunderland fans in a crowd of 20,731 had been for the pathetic topless pitch invader when he evaded two rugby tackles.
But just after former Newcastle striker Demba Ba, a 74th-minute replacement for Samuel Eto’o, had fluffed two good chances to sink the Mackems on his return to the North East, Sunderland launched one more patient attack from their two excellent centre backs, John O’Shea and Wes Brown.
Eventually the ball broke to Jozy Altidore in the penalty area but the American striker, whose only Premier League goal to date came in the 4-3 win over Chelsea a fortnight ago, could find no way through and Schwarzer saved bravely at his feet. The loose ball fell to Borini, who hammered in from an acute angle.
Ba’s carelessness will have frustrated Mourinho, no doubt, but there were plenty more targets for his ire last night.
Mannone made routine saves to deny Andre Schurrle, Willian and Kevin de Bruyne, and was able to look disdainfully at long-range shots from the same three players as Chelsea grew increasingly desperate. After the break, Lampard twice fired over, Mannone saved from De Bruyne and parried a Schurrle shot.
The worst miss came from Eto’o who, played in by Craig Gardner’s awful back-pass on the hour, somehow managed to miss the  target completely.
It was not the only contentious decision Taylor made in the first half, although his earlier one was less to the liking of Poyet and the Sunderland supporters.
It came after a rare penetrating move from the home side, initiated by Emanuel Giaccherini’s neat flick down the left flank into the path of Andrea Dossena, who advanced and crossed in the direction of lone striker Altidore.
Dossena’s centre clearly struck the elbow of Azpilicueta but Taylor ignored the protests.
O’Shea was so exasperated by the decision that he was still complaining about it as the teams headed off at half-time, with the men in black subjected to boos from unhappy Sunderland supporters.
That was all forgotten when Borini, scorer of the dramatic  Wear-Tyne derby winner, struck  two minutes from time after  Sunderland had survived Chelsea’s sustained assault on their goal.
Sunderland kept their nerve as Ki scored in extra time to win the game - click here to see our brilliant match zone service
A thrilling period of extra time brought more chances for both sides, neither of whom seemed to fancy a penalty shootout.
Schwarzer pulled off an acrobatic save to deny Ki, while Borini fired wide from a Dossena cross. Ba squandered the visitors’ best chance when he failed to reach the goal with a poor shot.
Sunderland, who missed Scotland striker Steven Fletcher because of sickness, next face Norwich at the Stadium of Light on Saturday.
That match begins a run of  winnable home games for a side who are four points adrift of Fulham at the bottom of the table and will prop up the rest at Christmas.
Only West Brom have stayed up having been in that predicament in the Premier League. Poyet knows Sunderland have been given the necessary lift to repeat the feat.

Sunderland: Mannone 7, Celustka 6, O'Shea 7, Brown 7, Dossena 6, Larsson 5, Gardner 5 (Ki 63 6), Cattermole 8, Johnson 5 (Borini 74 5), Giaccherini 6, Altidore 5.

Subs not used: Bardsley, Cabral, Roberge, Mavrias, Dixon.
Yellow: Dossena, Ki

Goal: Borini 88, Ki 118

Chelsea: Schwarzer 6, Azpilicueta 7 (Essien 70 6), Cahill 6, Luiz 6, Cole 7, Mikel 5, Lampard 7, Willian 6, Schurrle 5 (Hazard 83), De Bruyne 6, Eto'o 5 (Ba 74 5).

Subs not used: Torres, Oscar, Terry, Blackman.

Yellow: Luiz, Essien

Goal: Cattermole (OG) 46
Referee: Anthony Taylor 

Attendance: 20,731

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Mirror:

Sunderland 2-1 Chelsea: Ki's dramatic extra-time strike fires Black Cats into semi-finals
 
By Simon Bird
Ki and fellow substitute Fabio Borini score at the end of extra and normal time to take Gus Poyet's men into semi-finals
   
Jose Mourinho was left to rue Chelsea's lack of a ruthless streak as Gus Poyet finally discovered the Ki to success.
Ki Sung-Yueng fired Sunderland to their first League Cup semi-final for 14 years on a night when Poyet's men mercilessly exploited a succession of missed chances by the visitors to set up a possible trip to Wembley.
Mourinho was correct with his post-match verdict that his players squandered goal opportunities - Samuel Eto'o, Andre Schurrle and Demba Ba all had efforts on goal they could have converted.
But, as Sunderland bravely scrapped their way back into the game, they gave their more illustrious visitors a lesson in perseverance and how to kill a game.
It has been a long hard season for the Wearsiders' fans. Bottom of the table, sendings off, own goals (another one came here) and a managerial change have made them a tough side to follow.
Korean midfielder Ki's moment of glory, and the spirited way it came about, could yet be a catalyst for lift off in the league.
For Chelsea, it could be a catalyst for a change in style - less freedom of expression and attacking, and more defensive grind.
Ki's 118th minute winner was celebrated with gusto and capped a remarkable comeback.
Lee Cattermole netted an own goal - Sunderland's SIXTH in 11 games - in the 46th minute and looked to have sent Chelsea through in normal time.
The midfielder's slide tackle on Frank Lampard bundled the ball over the line under pressure from the England midfielder after a superb right-wing cross from Cesar Azpilicueta.
The strike was the first in the Capital One Cup to be confirmed by the Hawkeye goal-line technology system, with referee Anthony Taylor pointing to the watch that transmitted the data to him as he waved away Sunderland protests.
Chelsea were in control and appeared to be cruising through untroubled but unable to score again.
The League Cup was Mourinho's first trophy in England, and he was within two minutes of a semi-final berth when Fabio Borini struck with an unlikely equaliser.
The Italian, on loan from Liverpool, blasted in from a tight angle after coming off the bench.
He was set up by a surging run from countryman Emanuel Giaccherini, who slipped in Jozy Altidore. The American should have scored himself, but for Mark Schwarzer's well-timed intervention.
Borini's celebration lifted the mood at the Stadium of Light and Poyet's men sensed blood. They were outstanding and full of energy in extra time.
As Chelsea flagged, Sunderland took charge.
The home side came close to winning the game twice in extra time. Ki's header was brilliantly saved by 41-year-old keeper Schwarzer from Seb Larsson's cross.
Moments earlier, Ki's volley was touched on by Altidore and sub Michael Essien blocked on the line.
But with two minutes to go before a penalty shoot-out, sub Borini controlled a cross brilliantly, and teed up Ki.
He skipped inside two defenders and fired home.

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Express:

Sunderland 2 - Chelsea 1: Blues sent packing by fearsome Black Cats
SOUTH KOREAN Sung-Yueng Ki sent Chelsea crashing out of the Cup with a brilliant winner in the dying minutes of extra-time last night.
By: Niall Hickman

Ki cut inside the penalty box and delivered an accomplished finish for his first ever Sunderland goal to cap a stunning comeback for the Wearside club.
Fabio Borini, on loan from Liverpool, had equalised two minutes from the end of normal time, making no mistake from a tight angle to send the game into a thrilling final 30 minutes.
But he had a chance to settle the tie earlier, a brilliant challenge by Gary Cahill robbed him just yards from a glaring goalmouth.
Chelsea had clung on desperately to a 1-0 lead gifted to them by a Lee Cattermole own-goal in the first minute of the second half.
Incredibly, it was the sixth time a Sunderland player has scored an own-goal this season.
New goal-line technology, which was introduced this week for the first time in domestic cup football, rubber-stamped Cattermole’s goal and, although Jose Mourinho’s side were well below par in the first half, after the break they missed several glaring chances to extend their lead.
History suggested Sunderland were huge underdogs going into last night’s last-eight tie as the Blues had not lost on Wearside since going down 1-0 in October 2000.
Mind you, only a few week’s ago Mourinho’s side travelled to the North-east and were fortunate to return to the capital with a 4-3 victory.
Gus Poyet’s team could also seek some solace from the fact that the last two times they had beaten Chelsea in cup competitions they had gone on to reach Wembley, in 1985 and 1992.
Ashley Cole made a rare starting appearance for the visitors in his usual left-back berth, while the player who has replaced him, Cesar Azpilicueta, lined up on the opposite flank as Mourinho made eight changes from the side which squeezed past Crystal Palace on Saturday.
All the early incisive moves came from the visitors, although they were restricted to long-range efforts from Willian and Andre Schurrle, who both tested keeper Vito Mannone.
Frank Lampard also tried his hand from distance, but his effort sailed over the bar while, at the other end, Adam Johnson’s cross eventually fell to Craig Gardner, but he delayed too long.
Sunderland had not really troubled the Chelsea defence but, just after the half hour mark, Andrea Dossena’s cross appeared to strike Azpilicueta on the elbow yet, despite furious appeals, referee Anthony Taylor refused to award a spot-kick with TV replays suggesting Sunderland were hard done by.
The referee then booked a player from each side, David Luiz and Dossena, both for body checks, before Wes Brown uncharacteristically gave the ball away deep in Sunderland’s own half and the visitors nearly made him pay as Lampard found Willian in space on the right flank, but the winger’s fierce shot whistled across the face of Mannone’s goal.
Brown made another mistake shortly afterwards, gifting Samuel Eto’o the ball, but the former Manchester United defender raced back and retrieved possession, with Chelsea claiming their striker had been pushed in the process.
Sunderland managed their first proper shot just a minute before the break, but Giaccherini’s drive from 30 yards flew high and wide of the mark.
After just 39 seconds of the restart Cattermole unluckily broke the deadlock, via the new goal-line technology.
Azpilicueta’s cross from the right was met by Lampard at the far post, but just as the Chelsea stalwart looked certain to score, Cattermole nipped in and bundled the ball past his own keeper.
Lampard turned away in celebration, but TV replays indicated Cattermole had got the final touch.
But it was Ki, on loan from Swansea who had the final say to take his side into the semi-finals.

SUNDERLAND (4-5-1): Mannone; Dossena, Brown, O’Shea, Celustka; Larsson, Gardner (Ki 63), Cattermole, Giaccherini, Johnson (Borini 74); Altidore. Booked: Dossena. Goals: Borini 88, Ki 118.
CHELSEA (4-5-1): Schwarzer; Cole, Luiz, Cahill, Azpilicueta (Essien 70); De Bruyne, Schurrle (Hazard 83), Mikel, Lampard, Willian; Eto’o (Ba 74). Booked: Luiz, Essien. Goal: Cattermole 46 og.
Referee: A Taylor (Cheshire).

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Star:

Sunderland 2 - Chelsea 1: Black Cats given the Ki to the semi-finals
KI SUNG YUENG scored with two minutes remaining to secure an extra-time victory over Chelsea at the Stadium of Light tonight to claim Sunderland's place in the Capital One Cup semi-finals.

By Nick Lustig

Jose Mourinho fielded a strong starting line-up and saw his side take the lead early in the second-half as Lee Cattermole turned Cesar Azpilicueta's low cross into his own net in his attempts to deny Frank Lampard a tap-in.
But with two minutes remaining of normal time Sunderland, who put up little as an attacking force, equalised through Liverpool loanee Fabio Borini to send the game into extra-time.
And Ki was on hand to seal a famous victory late on in extra-time as he fired past Mark Schwarzer after a superb lay-off from Borini.
Chelsea began well with German forward Andre Schurrle stinging the hands of Vito Mannone with a 20-yard strike.
Mourinho's side continued to enjoy the majority of possession, but Lampard was unable to keep his long-range effort on target while Schurrle's pull back in the penalty-box evaded the Chelsea attack.
Willian was next to go close with a fierce shot that just went wide of the post as Chelsea were unable to find the break through before the half-time break.
However the Blues were in front a minute into the second-half as Cattermole, under pressure from Lampard, turned the ball into his own after a fantastic delivery from Azpilicueta.
It could have been even worse for Sunderland minutes later as Chelsea looked to secure their place in the last-four, but Samuel Eto'o failed to hit the target from close range while Mannone produced a stunning stop to deny Schurrle once more.
With just over 20 minutes remaining Sunderland hit the target for the first time in the match as Cattermole tested Schwarzer with a long-range shot that the Australian stopper comfortably held.
Chelsea were left to rue their missed opportunities as Borini fired into the bottom corner late on to bring his side level after Jozy Altidore had bustled his way through a wall of Blue shirts.
The first period of extra-time produced little with Chelsea remaining the most dangerous of the two sides.
Ki came close to putting Sunderland in front with seven minutes remaining in the final period of extra-time, but Schwarzer produced a stunning one handed save to deny the former Celtic star's header.
But Ki would not be denied as he netted with two minutes