Interesting comments on RefWatch about all 4 controversial incidents, especially the first no-penalty decision. There was general agreement that it was the wrong decision and VAR should have intervened and advised an OFR. But as Dermot pointed out, Stuart Attwell gave the 'cutting grass' sign (which he said was quite unusual) making it clear to players and fans he had seen it and it was definitely no penalty. So what is a VAR supposed to do in those circumstances? In this case, it was a relatively new PL referee on VAR and a FIFA referee onfield. Attwell seem to have a clear view with a good angle and no obstructing players in his eyeline. I have some sympathy with VAR in the circumstances, less with Stuart Attwell.