Marc Cucurella has revealed Chelsea were punished by Sunderland in areas they worked on in preparation for the Premier League clash.

Chelsea lost to Sunderland yesterday at Stamford Bridge, another disappointing performance from the Blues to snap a winning streak just as they threatened to pick up some form.The Blues were really

New boys Sunderland scored a stunning 93rd-minute winner at Chelsea to continue their brilliant return to the Premier League.

Chelsea's weakness was exposed by Sunderland and it was an area identified by Regis Le Bris' side before they stunned Stamford Bridge in the Premier League.

For instance, former Arsenal star Paul Merson has slammed Chelsea for their performance against Sunderland. While several players put in below-par performances on the day, Merson has singled out one star in particular. Paul Merson was not impressed by what he saw from Chelsea against Sunderland on Saturday and decided to speak his mind about it.

The second-half saw chances go both ways, but Sunderland managed to continue their impressive season by holding Chelsea off. And then they won it in the 93rd minute, with Chemsdine Talbi meeting a Brian Brobbey lay-off to give the visitors the three points.

Trevoh Chalobah commented on Saturday's home defeat to Sunderland and spoke about how Chelsea players felt they had to win this game, which backfired.

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