The reasons for this late departure of the judge are not communicated. But the other participants of the match, as well as the assistants, left the Otkritie Bank Arena less than an hour and a half after the end of the meeting.
After answering several questions from journalists, the referee left the arena.
Referee Sergey Karasev: ‘I am ready to explain my decisions in the game between Spartak and CSKA’
After the match, CSKA press officer Kirill Breido said the club would ask ESC RFU to assess the referee’s work. CSKA were not happy with the withdrawal of defender Willian Roshi, who had a conflict with the opponent’s striker Alexander Sobolev.
Source: Sport

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