He said: "The return of Rooney is sensational news for us. His injury has affected our game but when he is back we will have far more power in attack.
"With players like Rooney, Louis Saha and Tevez, we will have a sensational front line. People have still not seen the real Manchester United this season.
"With injuries and red cards this is already different to last season but we still have time to win the title again. The points difference is not that great.
"I believe the League will be more open but we have the confidence to repeat our title win and go on to win many more."