Brisbane may be asked for a please explain from the AFL after vision was shown during Sunday night's coverage of ruckman Oscar McInerney getting an injection.

McInerney copped a shoulder injury during the Lions' loss to Fremantle, and was then seen in the player's race receiving an injection from the Lions' medical staff.

Fox Footy commentator Nick Dal Santo commented on the incident, but didn't see an issue with the vision.

"It's probably just an AC joint, so that's just a local (anesthetic) injection into that left shoulder," Dal Santo said.

"Not a huge deal for the footballer. They get stung, there's no pain.

"He'll be numb for the next 45 minutes, he'll be perfectly fine to play out the rest of the game.โ€

The Herald Sun has received confirmation from the AFL that the league will review the vision.