He had total control of match so he had no need to show yellow or red cards. His assistant disallowed Dianmo's goal for offside and he was right and there was only one dubious decision when Oriekhov could have awarded a penalty for Dinamo after one player was pushed. The match was fair, only 23 fouls, and it was Oriekhov's doing that the number of fouls was so low.
NEC played in the first round against a Dinamo, but from Bucharest, so maybe they thought they would have an easy job in this match. I expected a much better team, in the last 250 days they lost just one match, but they were outplayed tonight. Dinamo played much better then in the Croatian league, so they have a chance for next round.