Port Adelaide ruckman Scott Lycett during the R8 Showdown and (inset) a dazed Ned McHenry. Pictures: AFL Photos

PORT Adelaide has decided against appealing the four-match suspension handed to ruckman Scott Lycett for a sling tackle that concussed Adelaide's Ned McHenry.

The ban means Lycett will miss Saturday night's game against the Western Bulldogs (home) along with games against Collingwood (MCG), Fremantle (home) and Geelong (home).

Lycett was sent to straight to the Tribunal on a rough conduct charge for his tackle in Saturday night's match.

>> WATCH THE INCIDENT IN THE PLAYER BELOW

The Power ruckman didn't contest the grading of his sling tackle as careless with severe impact and high contact.

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The AFL's advocate Jeff Gleeson urged the Tribunal on Tuesday night to pay attention to Lycett "turning the body to increase the force" of his tackle.

"What Lycett achieves in this tackle is that he wraps McHenry up, he then squares himself, he pivots, he rotates and he slams McHenry's head into the ground," Gleeson told the hearing.

"I'm not saying he intended to slam his head into the ground, the only question when it comes to severity of impact is what was the effect.

"And there is no other way to put it but that this dangerous tackle had the effect of not knocking the head into the ground ... but slamming it into the ground.

"The impact is extremely forceful and the injury was considerable ... the player is immediately limp.

"The potential was for even worse injury."

Gleeson called for a four-match ban at the hour-long hearing.

"In Lycett's favour, he hasn't come along here tonight and tried to minimise before you the nature and severity of his offence," he said.

"It's to his credit that he has accepted every single component of the charge ... (but) a guilty plea does not get you a reduction of matches."

The Tribunal panel of ex-players Stewart Loewe, David Neitz and Wayne Henwood met for about 20 minutes before delivering their verdict to Tribunal chair Ross Howie.

"They have considered particularly the degree of impact of the victim player, his vulnerability, the rotation of his (Lycett's) body that was involved and the manner in which his (McHenry's) head hit the ground," Howie said.

"And (they) considered what is important to the potential to have caused further injury."

Adelaide's McHenry will be sidelined at the least the mandatory 12-day concussion period.