I see that in the whole game, Grealish never once tried to take on a makeshift full-back (who happens to be one of the best defenders in the league).
Good choice, Jack. Remember the player you used to be?
He's quite effective in terms of their game plan. He hogs the left touch line, cuts in and then zings a pass in with his right foot. They retain possession and then recycle. It is machine football.
Also, he has an opponent to track and does this very well.
In terms of impact, a shadow of the player that we knew.