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Chelsea striker Diego Costa is in red-hot form this season and his goals has helped fire Chelsea to the top of the Premier League.

Chelsea will face Bournemouth on Boxing Day without Diego Costa after he picked his fifth booking of the season and Willian revealed it will be difficult to play without Costa.

Willian said: “Diego is such an important player for us and he is playing well and scoring goals.

“It will be difficult without him for that game but we have players who can come in and do well.”