Chelsea head coach Antonio Conte has backed Diego Costa to return to form in the club's upcoming matches.
Costa has failed to score for the Blues since his close-range effort against West Ham United on March 6, but Conte has suggested that he is not concerned by his player's recent performances.
The 47-year-old told reporters: "No, I'm not concerned about this, his form. It can happen. For me, the most important thing is he is showing me great commitment and behaviour during the games, and is doing what I want.
"He was also unlucky in a lot of circumstances, but a player like Diego Costa can score in every game, and I'm sure he can do this."
Costa has scored 17 goals in 28 league appearances for the leaders of this season's top flight.
