CSKA Moscow have been ordered to play their next European match behind closed doors by UEFA after supporters ignored previous warnings to curb racist conduct.
It followed incidents during CSKA's home match against Manchester City in October when Yaya Toure was subjected to racist chants, prompting UEFA to impose a partial ground closure for the November 27 match against Bayern Munich.
Further breaches in the 10 December match in Plzen led to a further UEFA investigation, and European football's governing body imposed the stadium closure penalty.
UEFA said in a statement: "CSKA must play their next UEFA club competition home game behind closed doors and pay a fine of €50,000 (£41,000) after supporters displayed a range of racist and far-right symbols during their 2-1 UEFA Champions League Group D defeat at FC Viktoria Plzen on 10 December 2013. The punishment reflects the fact that CSKA have previous records of racist behaviour by supporters."
CSKA finished bottom of Group D in the Champions League, meaning they missed out on qualification for the knock-out stage and also fell short of earning a place in the Europa League. Consequently, UEFA's penalty will come into effect in their next European campaign. CSKA currently stand fifth in the Russian Premier League, a position which would see them go into next season's Europa League.