FORMER Fremantle captain Matthew Pavlich headlines a list of players in Match Review Panel trouble from round one.
Pavlich, Collingwood's Steele Sidebottom, Adelaide's Matt Crouch and Brisbane Lion Mitch Robinson face rough conduct charges, while Gold Coast's Tom Lynch will also come under scrutiny for a high strike.
Pavlich was booked in Freo's season-opening loss to the Western Bulldogs on Sunday for a body hit on Easton Wood.
"You're always concerned if someone gets reported. That's pretty obvious, I would think," Fremantle coach Ross Lyon said.
"I saw it but I'm not in a position to comment. I'm sure it will run its course."
Sidebottom was reported for collecting star Swan Dan Hannebery in the Magpies' heavy loss on Saturday night.
The third-quarter bump left Hannebery dazed and he did not return in the final term.
Crouch collected North Melbourne's Jarrad Waite head-high and went straight into the umpire's book in the Crows' loss to the Roos.
Robinson was reported for an off-the-ball collision with Eagle Xavier Ellis in Sunday night's match at Domain Stadium.
The high contact by Gold Coast forward Lynch that stunned Essendon's Mark Baguley in the Suns' 61-point victory on Saturday will also be looked at.