Premier League linesman Constantine Hatzidakis has been suspended as the Football Association investigates his clash with Liverpool defender Andrew Robertson on Sunday.

Robertson appeared to be elbowed by Hatzidakis at halftime of their 2-2 draw with Arsenal after confronting the assistant ref.

After the incident, an angry Robertson and several team-mates approached referee Paul Tierney, who booked Robertson.

Refereeing body PGMOL said it "will not be appointing Constantine Hatzidakis to fixtures in any of the competition" during the FA investigation.

Meanwhile, former ref chief Keith Hackett told BBC Sport: "I was trying to find an excuse as to why he did it and I came up with was he in fear?

"He shouldn't be because he's in a protected environment with plenty of security.

"But he reacted in a way that he shouldn't. He's clearly lost his composure.

"If he is found guilty of this, his career is in jeopardy.

"The ban on Aleksandar Mitrovic wasn't long enough, so this has got to be the equivalent if he is found guilty.

"I would like the FA to convene a meeting this week and resolve the issue by the weekend."