Chelsea chairman Bruce Buck has condemned the actions of "a few mindless individuals" at some of their recent matches and branded the behaviour "unacceptable and unwelcome", in a open letter to fans published on the club's website.
The 700-word letter outlined Chelsea's inclusion and diversity work, including the Say No to Anti-Semitism campaign launched in January and the joint campaign, launched in 2010 in collaboration with anti-discrimination group Kick It Out to "try and rid the game of the Y-word".
Buck added: "The message from Mr Abramovich, our directors, our coaches, our players and our hundreds of staff is simple - this is a club open to everybody. We are committed and determined to be a force for good and not a symbol of society's wider problems.
"Clearly, there remains a way to go on this journey, but we will not rest until we have eliminated all forms of discrimination from our club.
"If you do not share these values, this is not the club for you. We are determined to win this battle, but we need the backing and action of those who share the principles of this great club."
