Richmond midfielder Jack Graham could be in Match Review Officer (MRO) strife following an errant forearm to the head of Hawthorn's Cam Mackenzie in a marking contest.

During Sunday's clash at the MCG, Graham was late to the ball and opted to stick an arm out to spoil the ball, which made head contact, resulting in a 50-metre penalty.

Both the crowd and commentator's reaction was one of shock, with Channel 7's caller Alister Nicholson responding with "Oh dear, that was clumsy and no good from Graham."

Michael Christian is likely to deem that Graham wasn't reasonably contesting the ball whilst not having eyes on the football and making high contact.

It comes as the midfielder has been courted by West Coast and could make the move across in the upcoming off-season.

Working against Graham was the fact that Mackenzie was taken from the field and assessed.

The Hawks could also be without star midfielder Will Day for an extended period after he was subbed from the game with a suspected collarbone injury.

More to come.