Chelsea’s Premier League title defense will start this weekend as they play against Swanse City, but ahead of that match The Blues’ boss, Jose Mourinho has some concern on his head.

Speaking to the media in a recent news conference, Mourinho stated that his currently worry with the condition of his star striker, Diego Costa.

Costa who picked up an injury during Chelsea’s preseason match against Barcelona, still having some discomforting issues which might forced him to miss this weekend’s tie against Swansea.

The Portuguese tactician admitted that he is not liking Costa’s current situation as there’s no clear confirmation on whether he can fully train and play without having that discomfort with his hamstring.

Nevertheless, Mourinho remain optimistic with Chelsea’s ability in grabbing all three points this weekend, even without Costa’s presence up front.