It seemed that Zenit were not at full speed today, were the players trying to keep something in reserve?

We did not try to keep anything back. We knew that this would be a difficult game and now we will prepare for the next difficult match. 

Any thoughts on the incident in the last minute when the ball was in their net? 

It’s hard to say at the moment. I was hard to see from the bench. 

What is the main reason for the defeat? 

We played below our best.