Former United striker Radamel Falcao warns VAR may 'kill football'
Falcao's Monaco side were beaten by Paris Saint-Germain 2-0 on Saturday and the Colombian had a goal disallowed by VAR.
He said: "It's frustrating when in two cases where there has been VAR, it has served to help PSG.
"Sometimes, after looking at the images, nothing is clear and this kind of thing can kill football.
"Reviewing the penalty lost four minutes and then four more for my goal. Tell me why the referee then only added two at the end of the game.
"It's amazing and frustrating but we're leaving with our heads up because we have given everything. PSG are very good but they needed the video referee to help them to beat us."