UEFA have opened disciplinary investigations against Dynamo Kiev following allegations of racial abuse from fans on four black men, who were attacked in the Olympic Stadium following Tuesday's goalless draw against Chelsea.
According to the Guardian, four fans were attacked by fellow Kiev supporters in the stands during the goalless draw between the second and third-placed sides in Group G respectively.
It isn't the first time the Ukrainian's have been on the end of allegations surrounding racial abuse of fans. Last season, when the side competed in the Europa League, they faced similar disciplinary action for fans' behaviour against Everton in the round of 16.
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The four men, who were shown to be attacked by fans in neighbouring stands on CCTV, tried to escape.
Anti-discrimination group 'FARE' reported the abuse on Tuesday night after the game; a game which, like all other UEFA promoted affairs, emblazoned the 'No to Racism' campaign.
The group also reported that fellow fans tried to step in and defend those attacked, though identities are yet to be revealed to officials and police following the attacks.
The ruling is to be heard next Tuesday following a committee meeting to discuss the case.
Away from the controversy, the game at the Olympic Stadium offered little in the way of entertaining football as Chelsea continued a disappointing season in the Champions League with a bore draw against a lesser side.
The Blues face Kiev in the reverse fixture during the first week of November, with anything less than victory potentially detrimental to their chances of progressing through to the last 16.
Mourinho's men are one point behind Kiev and three adrift of leaders Porto, but can seek faith from hosting the pair on home soil.