Tottenham boss Harry Redknapp believes Manchester United have lost their fear factor.
Redknapp believes United are starting to lose their dominance in English football.
He said: "Sir Alex has had so many great players and built so many great teams, but they cannot go on forever.
"Giggs, Scholes, Neville - they have been unbelievable players. But it's very hard to keep producing teams like the Treble one of 1999.
"Is it a good time to play United? They are still great, but they are not as good as they were when Ronaldo and Rooney were in the team."
