Manchester United's scoring sensation Wayne Rooney might miss his side's UEFA Champions League encounter with AC Milan on Wednesday after he was 'killed' by the Wembley pitch. The England ace was doubtful for the Three Lions' friendly with Egypt on Wednesday due to a knee problem, but eventually participated in the match after his injury turned out to be negligible. However, he suffered a relapse after playing against the Pharaohs at Wembley, and may not be able to feature against Milan at Old Trafford. United manager Alex Ferguson blamed England's famous stadium for the 24-year-old's status. "Wayne is very doubtful for Wednesday," he said. "The Wembley pitch has killed him."