The FA are expected to enlist the help of a lip reader in an attempt to solve their ongoing investigation into an incident that occurred during Arsenal vs Liverpool on Sunday.
Proceedings were briefly paused in added time as Michael Oliver, the referee, ran to the touchline to speak with both Mikel Arteta and Jurgen Klopp. It's understood to have referred to an argument that erupted inside the Liverpool penalty area and involved several players.
Oliver again spoke to both managers after the game, and the matter was then referred to the FA, who confirmed they were going to investigate the issue. "We are aware of an incident that took place during the match between Arsenal and Liverpool," an FA spokesperson said. "We are in dialogue with the match officials and will review the details of the incident."