COLLINGWOOD midfielder Taylor Adams will miss the Anzac Day blockbuster against Essendon after having his one-match ban upheld at the Tribunal on Tuesday.

Adams was offered a week for a sling tackle on St Kilda's Seb Ross in the third quarter of Sunday's Gather Round finale.

The rough conduct charge was graded as careless conduct, medium impact and high contact, leading to a one-week ban, which the Magpies chose to appeal.

Collingwood tried to downgrade the Adams' dangerous tackle from 'medium' to 'low' impact, which would have meant the midfielder would have been fined rather than suspended.

However, the Tribunal disagreed and Adams' suspension was upheld.

Adams was the third man in after teammates Beau McCreery and Tom Mitchell had already tackled St Kilda's Seb Ross, slinging the midfielder to the ground.

AFL counsel Nick Pane argued Adams' introduction made the tackle dangerous.

The Magpie got on the front foot with an aggressive defence, adamant the momentum of his teammates contributed to the tackle's force and that he had done what he could to protect Ross.

"I think it (the force) would've been reduced if those two boys weren't involved," Adams said.

Panel chair Jeff Gleeson admitted the "gang tackle" was a "novel" affair for the tribunal.

On a marathon tribunal night that stretched beyond five hours, Adams' hearing alone lasted for 90 minutes, before the tribunal panel deliberated for just under half an hour.

The panel agreed there was no momentum until Adams entered the tackle and provided the force that brought Ross to ground, creating potential for a concussive incident.

The Adams outcome comes after Essendon skipper Zach Merrett also had his appeal dismissed, meaning he'll miss Tuesday's clash at what is sure to be a packed MCG.

Young St Kilda forward Anthony Caminiti was handed a three-game ban by the Tribunal after successfully proving his off-the-ball hit that concussed Collingwood's Nathan Murphy was careless, not intentional.

The Bombers and Pies sit in second and third spot respectively heading into the Anzac Day game, the first time both teams have been in the top four for the annual clash since 2000.