I think it was Cole Palmer jogging back 5 yards behind Mbeumo and then slowing to a near-walk as Maupay was caught by the greyhound in green. No other Chelsea player was in camera shot.
He was on the edge of the 6 yard area and was bumped in the air as the ball came in. Hardly hanging around on the edge of the box.
It was hilarious to watch Maupay, with an 8 yard start on Sanchez, get run down and fail to score in a completely open goal. Fortunately for him, Mbeumo was...