Wigan Athletic can confirm that midfielder Chris McCann has suffered a multiple fracture of the right knee cap following a collision with Manchester City's Micah Richards during the FA Cup with Budweiser Quarter Final on Sunday.
McCann is currently being examined and assessed by a specialist in London to confirm whether or not he needs surgery on the injury.
Uwe Rosler confirmed the 26-year-old is likely to miss the remainder of the season.
"It's a massive blow for us and for Chris, especially coming so soon after the injury to Ben Watson.
"We will do everything we can to make sure Chris gets back to action as quickly as possible and in the best physical condition he can be."
McCann has been an almost ever-present in the team this season, making 39 appearances and scoring three goals, including one in the FA Cup fifth round against Cardiff City and most recently during the 2-1 victory away against Brighton & Hove Albion in the Sky Bet Championship.