WEST Coast ruckman Nic Naitanui will challenge his one-match ban for rough conduct at the AFL Tribunal.

However, the case won't be heard until Wednesday after the AFL agreed to delay the hearing to allow the Eagles' long-time legal counsel, who was interstate on Monday, to represent the star ruckman.

Naitanui will front the Tribunal after being booked for a heavy tackle on Saturday which concussed Port Adelaide's Karl Amon.

The incident was assessed as careless conduct with medium impact to the head.

Eagles coach Adam Simpson had flagged the likelihood of the club making the challenge.

"It's a bit of a head scratcher for me, personally," Simpson told Channel Seven on Monday night.

"The vision I saw, he didn't have his arms pinned."

Amon is in doubt for the Power's round eight clash against the Crows at Adelaide Oval.

Geelong spearhead Tom Hawkins will still appear before the Tribunal on Tuesday night as scheduled after being charged with making intentional contact with an umpire.

The case was sent straight to the Tribunal by Match Review Officer Michael Christian.

Hawkins made contact with the arm of field umpire Dean Margetts in Geelong's big win over Greater Western Sydney.

But the Cats forward insisted the contact was accidental, saying he thought it was a GWS opponent when he pushed Margetts' hand away.

Cats coach Chris Scott has no problem with the case going to the Tribunal.

"This is one of the rare cases, in my view, where I actually think, even though we've got a vested interest, it's not a bad thing putting it up to the Tribunal," Scott told Fox Footy.

"It gives Tom a chance to say his piece and at the very least, make it clear there was contact.

"He acknowledges that (and) there shouldn't be contact with umpires, it should be avoided at all costs. But this wasn't a situation where he thought, 'I'm going to push an umpire'."

WATCH: Nic Nat's three big tackles in 2018