Perhaps Mikel Arteta will regret the timing of his touchline fracas with Jurgen Klopp. Within a few minutes of the incident, and with the Anfield crowd whipped into a frenzy, Liverpool were in front.
It was all the more galling for Arteta, of course, given the scorer of the goal was Sadio Mane, the man whose mastery of the dark arts had so enraged him.