Arsenal legend Ian Wright says Andre Villas-Boas must perform a "ruthless" clearout at Chelsea.

In his column for The Sun , Wright wrote: "Villas-Boas will have to be clever with how he goes about it, but the one thing he cannot deviate from is being ruthless - because Chelsea is a club which HAS to be challenging for everything going.

"If he does it his way and it still doesn't work, then fair enough. But he has to stand or fall by his own beliefs - and be given the time to do so.

"He's had to deal with a lot of stuff off the field a new manager certainly wouldn't expect at this stage and there are a lot of strong personalities in the dressing room."