Chelsea No2 Ray Wilkins believes Manchester United will be weaker this season without Cristiano Ronaldo.

Former Manchester United midfielder Wilkins said: "The title race will be extremely interesting.

"United have lost Cristiano Ronaldo and that is a big hole in terms of replacing his goals.

"But they do have players who can fill that hole.

"I'm sure Spurs will be stronger and Aston Villa will want to go that bit better after going close to a Champions League place. And we don't know when Manchester City's spending is going to end and what kind of side they will have.

"We have got to win big trophies. Our squad is as strong, if not stronger, than most teams in Europe.

"Our players are winners. Carlo dealt with that at Milan and he's walked into a similar environment at Chelsea."