Like I said it's all down to what instructions the manager gave the players. Bamford was beyond Robinson before the ball was crossed. If Ampadu was tasked to stay between the other two centre backs, he'd be going against his manager. You can clearly see another Leeds player coming into the box, so who was going to deal with him if Ampadu was at the far post with the other two Sheffield defenders?
Goal - BAMFORD
— Chelsea News (@ChelseaFCGH_) September 27, 2020
Assist - HARRISON
Sheff Utd 0-1 Leeds (88 mins)#FPL #SHULEE pic.twitter.com/aJhtouBQSu