Marcus Rashford gave the visitors the lead against the run of play in the first half but Arsenal captain Martin Odegaard equalised seconds later.
Declan Rice scored his first goal for Arsenal and Gabriel Jesus added the icing on the cake as Arsenal roared back from a goal down to beat Manchester United 3-1 at the Emirates on Sunday.
The Gunners had a penalty award overturned following a VAR check and United were denied what could have been a late winner when substitute Alejandro Garnacho was ruled offside.
The home side kept up the pressure in eight minutes of added time and were rewarded when Rice controlled a corner and shot past Andre Onana with the help of a deflection off Jonny Evans.
There was still time for another goal as substitute Jesus burst forward, teasing Onana before putting the ball in the net.
The result leaves Arsenal fifth in the table after their third win in four games, two points behind leaders Manchester City, while United are 11th in the table.
