#3 Bailly and De Gea
I know, I know. De Gea was the one who flapped at Mustafi's shot and the first goal was given. But that was the Spaniard's only bad moment in the entire game, and he later went on to deny Aubameyang what would have been two certain goals against any other keeper in the league, whilst claiming most ariel duels and letting his defence know about approaching danger.
Speaking of his defence, one man who stepped up in that area for United was Eric Bailly, who got in a foot race with Aubameyang on several occasions and held his own, keeping the Gabonese striker at bay for almost the entire game.
Bailly made his first start since being sent off early in United's win against Newcastle two months ago and made it count as he barely put a foot wrong, putting in a strong shift against an Arsenal attack that has been on fire of late. His strong, error-free performance warrants more minutes in upcoming fixtures, especially since Lindelof is injured for a few more weeks.