Cape Town - Bayern Munich manager Pep Guardiola has cast a doubt on Manchester United's new midfielder Bastian Schweinsteiger by saying his former player was never fully fit during the last three seasons.
Guardiola said the 31-year-old Schweinsteiger can only be a success at the Premier League club if he can shake off his injury problems.
"When he does not have injury problems, I am completely convinced he will do very well at Manchester United," Guardiola was quoted as saying by the British media.
"He is a top, top player.
"Unfortunately, during the last three years he was never in good condition. He is going to play really good there (at United). I really hope that is going to happen."
German World Cup winner Schweinsteiger, who has been plagued by ankle and knee injuries throughout his career, spent 17 years at Bayern before joining United in the summer.