Stoke striker Bojan will miss the remainder of the season after sustaining a knee ligament injury against Rochdale in the FA Cup.
Bojan: Faces surgery which will end the Spaniard's season
The 24-year-old opened the scoring in Monday night's fourth-round tie at Spotland but was forced off with the injury in the 32nd minute and will now undergo surgery to repair his cruciate ligament in his left knee.
Stoke managed to secure a 4-1 win against Rochdale and they will travel to Ewood Park to take on Hughes' former club Blackburn Rovers in the fifth round.
Bojan was able to walk off the pitch with the Stoke physio but left Spotland on crutches.
The Spanish forward had scored five goals in his last 10 appearances for Stoke and manager Mark Hughes confirmed it is a big blow for the club.
Hughes said: "It's bitterly disappointing for the club but even more so for Bojan himself as he was making such a big impact on the Premier League and clearly enjoying his football. We wish him a speedy recovery."