Richmond skipper Trent Cotchin is certain to face scrutiny for a high bump which concussed Greater Western Sydney’s Dylan Shiel during Saturday’s AFL preliminary final.

Shiel failed a concussion test after Cotchin barrelled into his shoulder midway through the first quarter and made head-high contact.

The gun midfielder initially stayed on the ground but was ruled out for the game during the second term.

Shiel had also copped a separate high bump from Tigers defender David Astbury later in the first quarter.

Should Richmond make the grand final, Cotchin faces the nightmare prospect of being slapped with a sanction which would rule him ineligible to play.

The star Tiger has already been fined twice this season for low-level offences, and a third would result in an automatic suspension.

A despondent Shiel emerged from the Giants’ rooms midway through the second quarter and sat on the bench with his jacket on.

Leading sports doctor Peter Larkins told 3AW Radio that Shiel had suffered blurred vision.

Cotchin was looking to win the ball, and there was no free kick called, but the AFL’s crackdown on head-high contact means he is certain to face a nervous wait.

Hawthorn premiership player Campbell Brown said Cotchin should not be penalised for the challenge.

“Cotchin in NO trouble for contact. Went low, hard, eyes on ball and won it. Everything players are taught to do,” Brown posted on Twitter.

Giants veteran Steve Johnson could also face MRP attention after he struck Richmond defender Alex Rance in the face with the back of his hand on the halftime siren.