Jack Higgins will be unavailable for selection until Round 11, with the Tribunal electing to uphold the Match Review Officer's three-match sanction.
Higgins' tackle on Port Adelaide's Aliir Aliir was deemed as careless conduct, severe impact and high contact, with the Tribunal supporting all elements of the charge.
“Although disappointing to not have Jack's sanction overturned or downgraded, we respect the decision of the Tribunal and accept its findings,” EGM Football David Misson said.
“The head is sacrosanct, and we understand the importance placed on protecting the players."
Higgins said he accepted the Tribunal's decision.
"I understand and respectfully accept the Tribunal's decision," Higgins said.
"I wish Aliir all the best as he navigates his recovery and hope to see him back playing soon."