Granit Xhaka may have left Arsenal in the summer but he remains an interested spectator and he couldn't resist a cheeky dig at one of his former team-mates after the 6-0 win over Lens.
Mikel Arteta's side blew their French opponents away at the Emirates Stadium, with a five-goal first half capped off with another goal in the second half to secure safe progress to the knockout stages of the Champions League.
But Xhaka, who was formerly captain of Arsenal, could not resist having a pop at the player he used to sit next to in the Emirates Stadium dressing room.