CSKA Moscow have been ordered to close part of their stadium for next month's Champions League clash with Bayern Munich.
European governing body UEFA have issued the punishment over the racist behaviour of the club's fans during last week's 2 - 1 defeat to Manchester City.
Midfielder Yaya Toure complained to the referee during the game that he was being targeted by monkey noises and other racist chants.
In response City sent a letter of complaint over the incidents to UEFA.
If the CSKA fans are found guilty of a second offence, there will be full stadium closure with a minimum €50,000 fine.