On a training pitch in Marbella, Jurgen Klopp was watching Roberto Firmino hurtle here, there and everywhere and becoming increasingly concerned.
Liverpool’s break in Spain last week wasn’t supposed to be an occasion for the players to engage full throttle but the Brazil forward knows no other way.
The refusal to take it easy drove his manager to distraction and now, perhaps, he understands how all those opposing defenders feel.
It was the turn of West Ham’s back five to be persistently pestered on Saturday.