Their Full-Back had already skinned one of them, and if he beat the other he was 1-on-1 with the keeper and it's a goal. Allen was miles behind play and unable to defend his designated zone, hence Ampadu moved across to close down the ball and player. Our CH was stuck on the edge of the 6 yard box when he should have been moving forward towards their attacker, so that's two players who were already out of position who never did their job. BTW it's the defensive mids responsibility to close down the player with the ball, and it's the CH's who pick up the strikers.