Brisbane defender Ty Gallop will miss the next three AFL matches after the Tribunal suspended him for serious misconduct — just the sixth player in league history to be banned on that charge.

Gallop pleaded guilty at Tuesday night's hearing, July 28, for an incident during Brisbane's Sunday clash with Port Adelaide at the Gabba. After tackling Power forward Mitch Georgiades to the ground, and after the ball had cleared the area, Gallop shoved his opponent face-first into the turf.

The 23-game defender told the Tribunal the act was retaliation. He had been playing with strapping on a broken right thumb, and said Georgiades had deliberately grabbed the injured digit during the contest. Georgiades was not injured in the incident.

Gallop phoned Georgiades to apologise and expressed genuine remorse, calling his own actions a "very bad look" ABC News. His counsel, Adrian Anderson, pushed for a two-match ban, arguing the thumb-grab provided context.

The Tribunal wasn't buying it. Chairman Jeff Gleeson KC said the panel gave no weight to Gallop's thumb being grabbed, siding with AFL counsel Nick Pane, who argued Georgiades' head made forceful contact with the ground and the action carried significant potential to cause serious injury.

The case was sent straight to the Tribunal, bypassing the AFL's standard Match Review Officer process — the mechanism that usually grades on-field incidents and assigns penalties before any hearing AFL.com.au. The AFL stated the ban was intended to "send a strong message" about such conduct.

Gallop is the second player suspended for serious misconduct this season, following North Melbourne ruckman Tristan Xerri.

The fallout wasn't confined to the Tribunal room. Brisbane coach Chris Fagan and Port Adelaide coach Josh Carr clashed publicly over the Lions' physical approach following the incident, which was referred from Sunday's match AFL.com.au.

For Brisbane, the suspension lands at a costly point. Gallop will miss games against Carlton, Hawthorn and Gold Coast, and won't be available again until round 24, when the Lions face Collingwood at the MCG. Three weeks on the sidelines for a young defender finding his feet — a heavy price for a moment of retaliation the Tribunal deemed inexcusable, regardless of provocation.