The Chelsea boss said that Kean was better than given credit for.
Villas-Boas said: “It would be wrong to think like that. Blackburn are a team that are going through ups and downs in terms of emotions – losses and draws at home; a public that have shown a bit of disrespect for their manager.
“Steve is my friend and I have high respect for what he’s done. It’s been going emotionally up and down at Blackburn.”