At the end of the first half there was 2 minutes stoppage time but the referee did not blow the whistle for half time until at least 2.24 with chelsea on the attack and he only blew the whistle when the ball went out of play. I know the 2 mins is supposed to be a minimum of stoppage time but often in champions league game the refs blow the whistle before even the minimum time has elapsed. After Sterlings goal was disallowed, Chelsea attacked and fortunately lost possession and the game ended. But the point is that by disallowing goal it gave Chelsea one last opportunity to equalise, and the referee could have played on beyond the 4 minutes stoppage time until Chelsea had a shot. Seems to me that VAR is being used as another opportunity to change the results of games.