Sorry P but that’s the usual prevarication and whataboutery that you get, particularly, in that sport.
He’s trying to communicate nothing other than book that guy, it’s not on. That this carry on is so accepted these days is evidenced by the reaction of the players and the crowd. Pure cuntish behaviour.
As for the ref being within his rights to book him. He’s not, he’s required to do it. Pity all refs don’t!
Barca looked very sharp. Haven’t seen them play under the new guy until last night but they don’t appear to be too dissimilar from last year in how they set up.