Costa may not play again this season

London - Diego Costa may not appear for Chelsea again this season, Jose Mourinho has said, ahead of a summer fitness programme aimed at returning the burly Spanish striker to full strength.

Costa is definitely out of the club's home game at Crystal Palace on Sunday, where a win will see them clinch the title.

And if Chelsea do claim three points, Mourinho says their top scorer will not be risked again this campaign, after a season in which he's been plagued by persistent hamstring problems.