Chelsea legend Gianluca Vialli says the club needs stability at the top.
The heat is on boss Andre Villas-Boas, especially after club owner Roman Abramovich made a surprise visit to watch training at Cobham ahead of Sunday's game.
But former Blues manager Gianluca Vialli says Red Rom must keep faith with AVB.
Vialli explained: "Andre Villas-Boas has had more success in the last three years than 99 per cent of managers achieve in 30. He is doing a good job at Chelsea and just needs time to complete his project."
