Wayne Rooney
Wayne Rooney training at United's Carrington training centre on Tuesday ahead of their fixture against Bayern Munich. Reuters

Manchester United manager David Moyes has revealed that Wayne Rooney is willing to take an injection in order to face Bayern Munich in the Champions League quarterfinal second leg on Wednesday.

Following the Red Devils' 1-1 draw against the reigning Bundesliga and European champions in the first leg at Old Trafford last week, the 28-year-old was deemed unfit to take the field during their 4-0 victory against Newcastle United at St James' Park on Saturday due to a bruised toe.

There were also doubts whether Rooney will be fit to play in the second leg with reports suggesting that the striker could be available to feature at the Allianz Arena. Bayern boss, Pep Guardiola also expressed confidence that the England international will feature against his side in Bavaria.

Rooney had not trained since the first leg but was involved in training ahead of Wednesday's clash. Moyes also hinted that he will consider giving the former Evertonian a place in the starting XI owing to his determination.

"Wayne was able to train and he is massively keen to play. He's not trained all week so we have to be wary of that. We'll do everything we possibly can. He's happy to take an injection to play in the game, which shows you his feeling about the game and about the club," Moyes told United's official website.

"We think it's okay. We wouldn't do anything medically wrong. We've taken advice from the doctors and the people who advise us. Everybody knows the type of character Wayne is and he is determined to play. If he is determined we would be mad not to give him that opportunity."

With the aggregate score standing at 1-1, Bayern hold a slight advantage of having scored an away goal in the first leg. Rooney is United's joint top scorer alongside Robin van Persie with 17 goals in all competitions in this campaign. Moyes is wary that his side must score at least one without conceding more to book their place in the semifinal.

"Of course it's the hardest game. We'll do everything we can to reach the semis. There are a lot of top players on show from both sides. But I'll do everything I possibly can to help the players get a result on the night," the Glaswegian concluded.