Chelsea chairman Bruce Buck says Roman Abramovich's low profile shouldn't be confused with a lack of passion for the club.

Buck knows that, when Ken Bates sold the club to Abramovich, it underwent a significant change, not least moving from an owner with a megaphone to one who is like a Trappist monk. However, he feels the Russian's silence should not be misinterpreted.

He told the London Evening Standard: "It's not true that Mr Abramovich does not care what people think about Chelsea. Rightly or wrongly, Mr Abramovich changed English football forever. I feel very strongly that he hasn't had enough credit for what he's done. Chelsea's heart is definitely not black."