Arsenal took the bragging rights and all three points after coming from behind to beat bitter rivals Tottenham 4-2 on Sunday.
Pierre-Emerick Aubameyang scored twice to extend his season tally to 10 to put Arsenal into the top four.
Harry Kane gave Spurs a 2-1 lead with a penalty, but second-half goals from Aubameyang, Alexandre Lacazette and Lucas Torreira secured victory for Unai Emery’s men.
Jan Vertonghen also saw red after a second yellow card offence for a dangerous tackle.
The result sees Arsenal extend their unbeaten run to 18.
There were unsavoury scenes on the pitch during the match, with the two sets of players having to be separated following Eric Dier’s equaliser for Tottenham in the first half. Both club’s have since been charged with failing to control their players.
The two side’s face off again in the League Cup on Dec 17.
First up for Arsenal though is Manchester United on Wednesday, Spurs entertain Southampton.