Collingwood's Taylor Adams has been unsuccessful at the AFL Tribunal, seeing his one-game suspension for Rough Conduct upheld.

Adams and the Magpies had challenged the Match Review Officer's grading of his tackle on St Kilda's Seb Ross, which was seen as Careless Conduct, High Contact and Medium Impact.

Collingwood's aim in their challenge was to reduce the level of impact to 'low' instead of 'medium', which would result in a fine for Adams instead of a suspension, and therefore clear him to play in Round 6.

Collingwood argued in their case that Adams' teammates Tom Mitchell and Beau McCreery also played a part in the impact of the tackle, with all three Magpies players making contact with Ross before he landed on the ground.

The jury considered the fact that three players had partaken in the tackle that led to Ross falling to the ground, however the AFL Tribunal deemed Collingwood's case to be insufficient to overturn the suspension.

The suspension will mean Adams is unavailable to face Essendon for next Tuesday's Anzac Day clash.

He will be free to return in Round 7 when Collingwood play Adelaide at Adelaide Oval.

Earlier on Tuesday night, Bombers captain Zach Merrett failed in his own challenge to overturn a dangerous tackle charge, with Essendon to be without their skipper for next Tuesday's blockbuster.