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Bottom club Sunderland earned a stunning win at Chelsea that severely dented the Blues' title hopes and gave leaders Liverpool a major boost.

Connor Wickham followed up Marcos Alonso's shot to equalise after Samuel Eto'o had given Chelsea the lead.

After several Chelsea chances, Sunderland were given a penalty when Cesar Azpilicueta fouled Jozy Altidore.

And Fabio Borini scored to inflict Jose Mourinho's first home Premier League defeat in 78 games as Chelsea manager.

The award of a marginal penalty so late in the game sparked anger on the Chelsea bench and Mourinho had to restrain assistant coach Rui Faria, who was seeking to confront referee Mike Dean.

Faria was sent to the stands to watch the final stages as the match - and quite possibly Chelsea's chances of winning the league - fizzled out.

Faria is restrained with Mourinho in the background before being hustled away by Chelsea staff

The shock result leaves the second-placed Blues two points behind Liverpool, who will play their game in hand against Norwich on Sunday before hosting Chelsea a week later.

Meanwhile, Sunderland, who had secured a point at title-chasing Manchester City in midweek, closed to within three points of Norwich, who are occupying the final spot above the relegation zone.

While the result was a huge coup for the Black Cats, it represents a devastating blow for Mourinho, who must rouse his men for their trip to Atletico Madrid for the first leg of their Champions League semi-final on Tuesday.

Once again, the Portuguese was left lamenting the inadequacies of his strikers as the Blues only converted one of their 31 chances in the absence through injury of their top scorer Eden Hazard.

The Blues had begun the match confidently, as Eto'o capitalised on some slack Sunderland marking from a corner to open the scoring.

Jose Mourinho's Premier League record at Stamford Bridge Player Games Wins Draws Losses Win percentage First spell 60 46 14 0 77% Second spell 18 15 2 1 83% Total 78 61 16 1 78%

Willian's delivery found the Cameroon frontman, who pounced in front of Lee Cattermole to notch his 12th goal of the season from close range.

Sunderland's equaliser also came from a corner as the ball was sent directly to Alonso in acres of space on the edge of the area. The Spaniard's low drive was only parried by Schwarzer and Wickham reacted quicker than John Terry to score his third goal in a week.

Chelsea were denied a goal on the half hour when Nemanja Matic was adjudged to have fouled Jack Colback as he nodded the ball down for Terry to sweep home a volley.

Shortly afterwards, Sunderland were saved by the woodwork as Vito Mannone somehow managed to deflect Branislav Ivanovic's header from point-blank range onto the underside of the bar.

Chelsea 1-2 Sunderland: Jose Mourinho 'congratulates' referee

Sunderland were indebted to their goalkeeper three more times as he saved from Matic, Mohamed Salah and Willian.

And in a frantic end to the half, two penalty appeals were turned down by referee Dean as Alonso appeared to handle inside the box and Sebastian Larsson shoulder-barged Ramires off the ball in front of goal.

Clearly irked by what he saw as an unfair challenge, Ramires was lucky to escape punishment moments later as he elbowed Larsson in full view of Dean.

Chelsea picked up where they left off in the second half as a brisk counter-attack ended with Eto'o sweeping narrowly past the post.

Mourinho brought on Demba Ba for the final half hour, but even the in-form Senegalese striker could not find his range as he sliced horribly wide from Willian's cut-back.

Last four days remarkable - Poyet

As the half wore on, the Blues' efforts became increasingly desperate and disjointed as they were repeatedly unable to produce a finish to beat Mannone.

Chelsea's commitment to attack left them exposed on the break and they paid the ultimate price as Azpilicueta's slip let in Altidore down the right.

Azpilicueta slid in to try to challenge the American and was ruled to have brought him down.

Former Chelsea forward Borini, who is on loan from Liverpool, kept a cool head to slot the ball past Schwarzer to send the visiting Sunderland fans into raptures.

Substitute Andre Schurrle responded with a dipping shot from 30 yards which again saw Mannone produce heroics to tip over, before the Italian confidently gathered a Terry header to snuff out Chelsea's last hope.

Premier League top three title run-ins Liverpool Chelsea Man City Sun 20 Apr:Norwich (a) Mon 21 Apr:West Brom (h) Sun 27 Apr:Chelsea (h) Sun 27 Apr:Liverpool (a) Sun 27 Apr:Crystal Palace (a) Mon 5 May:Crystal Palace (a) Sun 4 May:Norwich (h) Sat 3 May:Everton (a) Wed 7 May:Aston Villa (h) Sun 11 May:Newcastle (h) Sun 11 May:Cardiff (a) Sun 11 May:West Ham (h)