Chelsea striker Diego Costa could miss this weekend's Premier League clash with Swansea City after undergoing tests on his hamstring, reports Daily Star.
The forward - who has made a fine start to his Chelsea career - didn't feature for the Spanish national side in their Euro 2016 qualifier against Macedonia last night after picking up the injury against France last week.
And it now appears that he could miss Chelsea's fourth league game, as Mourinho could hand the forward extra recovery time in order to get him fully fit for his side's first Champions League game of the season against Schalke next Wednesday.
It appears, though, that the club are confident that the Spanish international won't be ruled out for the long term. The Blues may, however, have to take on their Welsh opponents with veteran Didier Drogba in the starting XI.
New signing Loic Remy will also be hoping to feature this weekend, but it remains to be seen as to whether Costa will play any part at Stamford Bridge.
Chelsea fans will certainly be hoping that Remy proves a strong enough replacement when Costa's unable to play throughout the course of the season. The ex-QPR forward has certainly proved his credentials in England's elite division in recent time, having starred at Newcastle United last term.
Chelsea fans will certainly be hoping that Costa makes a speedy recover after his fine start to the campaign. With four goals in his opening three games for the club, the striker is currently the league's top scorer.
He's helped Mourinho's side fire in the early stages of the season, having secured three straight victories in England's elite division, and the club will be targeting another victory against the Swans on Saturday.
Swansea, meanwhile, have made a fine start to the season themselves, having also picked up a maximum of nine points in this campaign. The Welsh outfit went to Old Trafford on the opening day of the season and secured a win over Manchester United, and will now be looking to do the same at Stamford Bridge.
Chelsea fans: Are you confident your side can secure the three points without Costa this weekend? Have your say in the comments section below!