Manchester United striker Wayne Rooney will take a painkilling jab to face Champions League opponents Bayern Munich.

The Daily Mail says Rooney will be given a strong painkiller to enable him to play in the Champions League quarter-final at Bayern after it emerged that United's striker may have chipped a bone in his foot.

United boss David Moyes revealed that Rooney was 'touch and go' for the second leg at the Allianz Arena after suffering what was thought to be a badly bruised toe in last week's 1-1 draw at Old Trafford, but it now appears that the damage may be more serious.

However, the 28-year-old England forward is determined to play in United's biggest game of the season with the help of powerful painkilling tablets as Moyes' side bid to end Bayern's reign as European champions.

Rooney has been working in the club's pool to protect the injury and is expected to board the team's flight to Germany later on Tuesday.

He is understood to have been reassured that he would not risk worsening the problem, with the World Cup in Brazil just over two months away.