The PGMOL will look into allegations that Liverpool’s Andy Robertson was elbowed in the chin by assistant referee Constantine Hatzidakis.

At the end of the first half against Arsenal, Robertson approached the official angrily and appeared to shove him as he passed, with Hatzidakis raising an elbow that hit Robertson.

The Scot reacted angrily and approached referee Paul Tierney, who booked Robertson, 29, along with several teammates.

The game at Anfield ended 2-2, with Liverpool coming back from a 2-0 deficit to draw with the league leaders.

Chris Sutton, a former Premier League striker who was watching the game for BBC Radio 5 Live, believes Hatzidakis should be punished.

“I’m not sure what he was thinking. As far as I can tell, he must be prohibited “Sutton stated. “He will have to miss several games. I can’t recall another incident like it. Where can I find a precedent for this?”

For his reaction, Sky Sports pundit Roy Keane dubbed the Reds player a “big baby.”

“Robertson should be more concerned about his defense,” Keane said. “Simply play the game. He goes for the linesman first.”