CB) Laurent Koscielny 6
By far the more impressive of Arsenal’s two centre-backs, Koscielny was a brave and commanding presence and also demonstrated the composure in possession that was lacking from his German teammate.
LB) Nacho Monreal 5
Remains unconvincing at left-back, despite several key tackles. He was arguably at fault for United’s goal when he failed to track Herrera and clear the danger.