Thank you, great link. I did not know before
I think it was 23:22 for dinamo, when Biryukov and his co-blocker had actually a nice block against Zeniths opposite. The ball was slowly going to fall down on zenith's side but then Biryukov decided to reach through under the net, almost touching the ball. The ball actually fell down on Zenith's side but the ref gave the point for Zenith. The reason was probably and rightfully "interference".
He actually touched the ball