PGMOL release statement after linesman Constantine Hatzidakis appears to elbow Andy Robertson

The PGMOL have confirmed they will review the incident in which Liverpool defender Andrew Robertson appeared to be elbowed by linesman Constantine Hatzidakis at half-time 'in full'.

Robertson approached the official, who then appeared to raise his arm towards the defender. Liverpool players surrounded referee Paul Tierney following the clash, with Robertson receiving a yellow card.

in a statement released as the game continued, PGMOL said: "PGMOL is aware of an incident involving assistant referee Constantine Hatzidakis and Liverpool defender Andrew Robertson at half-time during the Liverpool v Arsenal fixture at Anfield.

''We will review the matter in full once the game has concluded."