Manchester United striker Wayne Rooney says they cannot be complacent after last night's Champions League semifinal first-leg win at Schalke.
Rooney refuses to accept that United now have one foot in the final at Wembley, knowing that Schalke scored five goals in the San Siro against Inter Milan in the last round.
"Schalke are a good team and we can't take them lightly. We need to make sure we are professional and full concentrated," he said.
Rooney and Ryan Giggs were United's goal scorers in the 2-0 win.
