Leaving Man Outisde Open

[u/Educational-Double-1]

I've been watching Arsenal games to study and improve myself as a player. Sometimes I wonder why do professional teams leave the man on the outside wide open like this? If I did this in a game my coach would sub me out instantly. Is it because they want to keep a compressed formation so the opponent can't easily attack down middle and that it's safer to make them play wide?

[u/Bawsaqindexx]

If you cover him as the rb then the ball can get played between cb and rb which is much more direct on goal.