Diego Costa may not play again for Chelsea this season

Jose Mourinho says Diego Costa is unlikely to play again for Chelsea this season – unless the Blues blow the chance to secure the title against Crystal Palace.
Costa has struck 19 goals this term but has been troubled by a recurring hamstring injury and has missed his side’s last four games.
He will not be risked against Palace on Sunday, and Mourinho admits is considering leaving the Spaniard out for their final three games too if Chelsea beat the Eagles to clinch the Premier League crown.
“No, just isn't worth the risk," said Mourinho, insisting the former Atletico Madrid hitman has not suffered a setback.
"We don't need to rush. We are trying to give the maximum stability for him to be stronger and stronger.
"There is a chance he might not (play again this season). If we win Sunday, I would say he doesn't play against Liverpool.
"If we don't win Sunday and we need points against Liverpool, I would say he plays against Liverpool. If we don't need, probably he won't play again.
"We are preparing a good working situation for him during the holiday period where he can mix holidays with work with our people."
Chelsea have four games left to claim the three points they need to clinch a first title in five years.
But Mourinho is determined to get it wrapped up this weekend at Stamford Bridge.
He said: "We need two or three points to be champions. Let's say three to make sure we don't depend on goal difference.
"We need a victory or we need three points with three draws. Obviously we want to finish as soon as possible. If we can do it at home, better.
"If we can do on Sunday, even better. That's what we have in our minds."