Manchester City fans have been booing the so-called UEFA Champions League anthem since the former City player Mario Balotelli was racially abused during a Europa League tie against Porto. The club was let down, especially with the inadequate punishment when UEFA acted by giving the Portuguese side a measly 20,000 euro fine.
Then there was the time when CSKA Moscow had their stadium closed to spectators following years of persistent racial abuse and bad behaviour by their supporters towards players of ethnic background.
Originally, Blues had purchased tickets for the Champions League tie. They had booked flights and hotel rooms only to be told at the last minute that UEFA had closed the Moscow stadium and the game was to be played behind closed doors.