Veteran football expert Richard Keys has accused Sunderland of potentially endangering the safety of players.
This follows the club admitting to shifting the advertising hoardings as a tactic to secure a draw against the league leaders on Saturday.
Brian Brobbey rescued a point for the Black Cats with an injury-time equaliser after the Gunners had come from behind to take a 2-1 lead, with Bukayo Saka and Leandro Trossard scoring for Mikel Arteta's side.