Really poor for their goal. All 3 of Bonucci, Arthur and him need to do better in situations like that. McKennie was best placed to deal with the situation as the unmarked player was easy to get to, but he got caught ball watching and ran to the box instead of to the player.
He found space well but a lot of attacks broke down with him. Did well on the goal though with an excellent forward run.
He still seems incredibly raw but the potential is there.