Wolverhampton Wanderers midfielder Jamie O'Hara has been ruled out for four weeks with a groin injury.
The 25-year-old revealed on Monday that he has required injections to manage the pain in recent weeks, and has consequently missed a number of training sessions with his teammates.
O'Hara missed Sunday's 5-0 defeat to Manchester United, and his loss is considered a major blow to the club's chances of remaining in the Premier League.
O'Hara joined Wolves on a permanent basis from Tottenham Hotspur last summer.
