In March 2008, black players of French side Marseille, including André Ayew, Ronald Zubar and Charles Kaboré, were targeted by fans of Zenit Saint Petersburg; Zenit fans were later warned by police in Manchester not to repeat their behaviour ahead of the 2008 UEFA Cup Final. Later on, Zenit coach Dick Advocaat revealed the club's supporters were racist. When they attempted to sign Mathieu Valbuena, a Frenchman, many fans asked "Is he a negro?" Additionally, Serge Branco, who played for Krylia Sovetov Samara, accused Zenit's staff of racism: "Each time I play in St Petersburg I have to listen to racist insults from the stands. Zenit bosses do not do anything about it which makes me think they are racists too."