Fremantle coach Ross Lyon says skipper Matthew Pavlich is just a 50-50 chance to take on North Melbourne at Etihad Stadium on Sunday as the key forward continues to battle a raft of niggling injuries.
Pavlich, who suffered a cork to his already suspect right hamstring in last Saturday's win over Richmond, boarded the team flight to Melbourne on Friday despite failing to train this week.
Lyon remains hopeful Pavlich will get up for the crunch clash, but the club took all three of their emergencies to Melbourne just in case the inspirational 30-year-old was ruled out.
Back-up ruckman Zac Clarke is the frontrunner to replace Pavlich, while Dylan Roberton and Cameron Sutcliffe are the other two emergencies.
Ryan Crowley (ankle), Nat Fyfe (ankle) and Tendai Mzungu (shoulder) have also been under injury clouds over the past week.
Lyon said Pavlich was struggling with "soreness, injuries, corked hammy - all those things".
"It's a 50-50 at this point," Lyon said.
"We've planned an alternative ... but I think he'll get up.
"We won't take anyone that can't perform in. Once you nominate yourself, you're fully fit, so that's the way it works."
When asked what Pavlich had to do to prove his fitness, Lyon replied: "Walk in and say, 'Coach I'm happy to play'.
"We'll give him some physical stuff. He did some work today, he just didn't do any full training."
Should Fremantle (12-8) lose to North Melbourne, Carlton (11-9) would be in the box seat to snare a top-eight berth ahead of the Dockers due to their superior percentage.
The Kangaroos (13-7) have won nine of their past 10 matches to surge into sixth spot, with Lyon rating North Melbourne as the form team of the competition.
"They're not unlike Carlton in 1999 - struggled in the first half and then just flew home ... and made it to a grand final," Lyon said