Orsato has had 2 chances to RC Fred. I've some sympathy with the 'common sense' argument given the usual theatrical reaction to the head movement, but I was surprised he gave a YC to the PSG player in a later incident when replays suggested it was Fred who was the worse offender.
Fred should be substituted because he looks an accident waiting to happen. If he's not, and does get a RC, more serious questions of OGS.