MUNICH - Manchester United's Wayne Rooney faces a race against time to be fit for Wednesday's (Thursday, Fiji time) Champions League quarter-final second leg at Bayern Munich.
European champions Bayern suffered its first Bundesliga defeat for 18 months when it was beaten 1-0 at Augsburg on Saturday following last Tuesday's 1-1 first-leg draw with United at Old Trafford.
Centre-back Nemanja Vidic's header put United ahead in the first leg at Old Trafford only for Bayern's Bastian Schweinsteiger equaliser before being sent off for a second yellow card on the stroke of 90 minutes.
Bayern coach Pep Guardiola has described Wednesday's second leg at the Allianz Arena as a matter of "life or death" for holders Munich, who has made no secret of its desire to become the first team to defend the Champions League title.
United's hopes hinge on Rooney, who missed Saturday's 4-0 league win at Newcastle United with a badly bruised toe and the 28-year-old's absence would be a big blow to United's chances of progressing.
Along with Robin van Persie, who is out with a knee injury, he is the club's joint-top scorer this season with 17 goals, two of which were in the Champions League.
"If he's out, it would certainly be a big loss for United," admitted Bayern centre-back Jerome Boateng, whose job would be to contain the England star.
"Wayne Rooney is the key man for United, he always makes himself available and he goes looking for the ball, he's always good for a goal."