AFL MRO: Is the Fremantle captain in strife for this collision?

Fremantle captain Alex Pearce could receive some scrutiny from the Match Review Officer (MRO) after colliding with Port Adelaide's Darcy Byrne-Jones during Saturday's match at Optus Stadium.

During the second quarter, both players had eyes for the football, with Byrne-Jones going back with the flight, ultimately running straight into Pearce. The Power forward was left concussed.

He will enter concussion protocols, potentially not miss any games, as Port Adelaide has a bye in Round 12.

Dockers coach Justin Longmuir said he wasn't worried about a potential ban for his skipper, saying that these collisions, albeit unfortunate, happen in the AFL.

"I'm not concerned at all," Longmuir said.

"Extreme courage to go back with the flight like that and touch the ball before Alex gets there, but from what I see, Alex is making a play on the ball – don't think he makes contact with the head.

"What's Alex supposed to do in that situation? Pull out of that contest and let him mark it going back with the flight?

"He'd get crucified if Alex pulled out of that contest – that's what would happen.

"I don't have any issues with it."

Longmuir went on to say he didn't think it was a free-kick, indicating that he didn't believe Byrne-Jones was hit high.

"There's things that happen in our game -there's unfortunate contact that happens in our game," Longmuir said.

"It happens in marking contests a lot – I see it as one of those situations.

"I didn't think it was a free kick – I've got no issues with it being paid a free kick, but I didn't really think it was a free kick. I thought it was two guys contesting the ball.

"I didn't see any head high contact.

"I didn't think Alex had anything to answer for."

Port Adelaide coach Ken Hinkley

"It's an unfortunate part of the game, still – they happen. But we'd rather they didn't, but they do," Hinkley said.

"Once upon a time, they were footy incidents that weren't such a big issue, but they are now.

"I'm sure Pearcey wouldn't have meant that, but it will play out with the AFL like it has always done.

"They are split-second decisions that slightly go wrong.

"Concussion seems to be – and rightly so, is the overriding factor in it all, I think."

The MRO's findings from Saturday's games will be released on Sunday evening.