Blues boss wants star striker to rediscover top form.
Chelsea manager Jose Mourinho admits he is slightly concerned by the fitness of star striker Diego Costa, who has now gone two games without a goal in the Premier League.
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According to the Daily Star, Mourinho feels Costa may have lost a bit of confidence in his play due to several injury niggles throughout the season, which have affected him in training and in the way he moves on the pitch.
The Spanish international, a £32m summer signing from Atletico Madrid, started the season in immense form in front of goal, but now only has two strikes to his name in his last seven appearances for Chelsea.
With Mourinho’s side slipping to a shock defeat away to Newcastle United this weekend, Costa will have to get back to his best quickly to ensure his team’s title challenge doesn’t start to falter in the second half of the season.
“For me, the problem is not the goals,” said Mourinho. “They will come as a consequence of his condition. He has to improve his condition. He was injured and had many doubts because he went a long time without training.
“Obviously that must have an effect on a player in the way he runs, the way he moves and in his coordination.”