Manchester United striker Wayne Rooney is set to miss next Saturday's Premier League game against Norwich City at Old Trafford.
The England star could be out of action for several weeks after injuring his hamstring in training.
United manager Alex Ferguson confirmed the news after the 1-1 draw at Stoke City on Saturday.
Rooney, 25, who has started the season in outstanding form with nine goals, missed the match when United dropped their first points of the season but stayed top of the Premier League on goal difference from Manchester City.
Ferguson told reporters: 'Rooney's is not a serious injury, but it was enough to keep him out today, and I think maybe for a few weeks.'
If that's the case Rooney will miss United's Champions League match with Basel at Old Trafford on Tuesday and possibly England's Euro 2012 qualifier in Montenegro on October 7.
Rooney was not the only United player suffering with defender Jonny Evans injuring a foot in the warm-up at Stoke while Mexico striker Javier Hernandez went off early in the game after suffering a dead leg in an early collision with Jonathan Woodgate.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here