Sir Alex Ferguson faces a nervous wait on the fitness of Wayne Rooney after the striker hobbled off late on in the 2-1 UEFA Champions League quarter-final first-leg loss at FC Bayern München and left the stadium on crutches. "[Rooney] has got a kick in the ankle," the Manchester United FC manager said. "We'll just have to wait and see but hopefully it's not too serious. He's maybe doubtful for Saturday, but it's too early to say. It's an ankle injury and he's being treated by our medics."