Anzhi Makhachkala defender Christopher Samba has claimed that the issue of racism is "killing the game".
The Congolese defender moved to the Dagestan club in January 2012, and found himself the victim of prejudiced chanting from the stands in Russia.
AC Milan star Kevin-Prince Boateng recently walked out on a match after being greeted with monkey chants, and Samba feels the Ghanaian was right to do so.