Port Adelaide's Darcy Byrne-Jones and the Western Bulldogs' Oskar Baker are set to miss the AFL's Gather Round showpiece after being given one-match bans for rough conduct.
Both were cited over head-high bumps in their respective teams' round-four losses on Sunday.
But GWS captain Toby Greene is free to play after escaping sanction over a tunnelling incident involving West Coast's Matt Owies.
All-Australian Byrne-Jones caught St Kilda's Ryan Byrnes with a high bump that was assessed as careless conduct, medium impact and high contact.
He is set to miss the Power's clash with Hawthorn at Adelaide Oval on Sunday night unless he can successfully challenge the charge at the AFL Tribunal.
Likewise, Baker faces sitting out his side's meeting with reigning premiers the Brisbane Lions at Norwood Oval on Saturday.
His high bump on Fremantle's Andrew Brayshaw was assessed as careless conduct, medium impact and high contact.
Dockers captain Alex Pearce was fined $3000 for head contact with Bulldogs' Josh Dolan.
Port star and serial offender Zak Butters was fined $1500 for instigating a melee against the Saints and a further $5000 for engaging in it.
Power captain Connor Rozee was also among the eight players fined for engaging in the melee.
Teammate Jason Horne-Francis was fined $3125 for careless contact with an umpire and St Kilda playmaker Nasaiah Wanganeen-Milera was fined $1500 for striking Port's Mitch Georgiades.
Meanwhile, Collingwood recruit Dan Houston will be sidelined for both games on his side's eight-day road trip after accepting a two-match suspension for his high bump on Carlton forward Lachie Fogarty.
The Magpies face tough interstate assignments against last year's grand finalists over the next two rounds, starting with Sydney at Adelaide Oval on Friday night.
They will then head directly to Brisbane, where they take on the Lions at the Gabba in round six.
Former Power defender Houston's latest ban comes after his served a five-match suspension for last August's brutal bump on Adelaide's Izak Rankine.
Houston initially felt there was nothing untoward in the latest incident.
But after considering their options, Collingwood on Monday accepted the two-match ban.
"I thought I had fair play on the ball and obviously I've gone to protect myself and those things happen," Houston told the Seven Network post-match.
"I didn't actually realise it happened ... I was fully focused on the team.
"I think it's such a hard game to play, and especially behind the ball you've got to make those split-second decisions when you see the ball coming at you.
"He was in front of me and, yeah, I don't think there's anything in it."
