The Mikel Arteta men had an impressive start for the day and got the job done at the first half of the game.
Goal from Lacazette penalty kick and a classical free kick from Xhaka gave Arsenal FC. the deserved lead for the night.
The Frank Lampard side came into the second half of the game full of energy to up turn the scoreboard with no shot on target.
Goal from Saka creative strike gave the Gunners the needed lead at the 56th of the game.
Consolation goal from Tammy Abraham was not enough to rescue Chelsea FC in securing a draw in the game.
Fantastic save by Arsenal goal stopper, Leno, at the 90th minute confirmed the win for his team.