Fremantle will await the outcome of a knee injury to ruckman Sean Darcy that could open the door for big forward Jesse Hogan's AFL return.
Darcy hyper-extended his left knee during the third term and will head for scans on Sunday after finishing the Dockers' 12-point loss to Brisbane on crutches.
It is the same knee that Darcy suffered PCL damage on in 2018.
After almost stealing victory from the Lions on Saturday, Dockers coach Justin Longmuir admitted the potential loss of his ruckman for next week's date with Port Adelaide could force a shake-up.
Forward Rory Lobb presents as one ruck option after carrying the load in Darcy's absence for half of 2019.
"I think we can manage and we're just going to have to restructure our team a little bit," Longmuir said.
"We'll have to get it (Darcy's injury) scanned tomorrow but it doesn't look great at this stage.
"He's disappointed, clearly, it's been a long time out of footy and just to get back and get injured first game is not ideal. Fingers crossed it's not too bad."
Overlooked for AFL selection, Hogan impressed in a reserves scratch match against the Lions on Saturday morning as he vies for his first game back from a foot injury and time away to deal with his mental health.
"It's a big step to be honest," Longmuir said.
"It wasn't the news he wanted to have, to not play at AFL level, and he approached it with the right attitude."
Late withdrawal Nathan Wilson headed for scans on Saturday after a back spasm but is expected to return against the Power.
Meanwhile, Lions coach Chris Fagan praised Charlie Cameron's "energy" in his four-goal outing and added Lachie Neale (game-high 29 disposals and two goals) was desperate to atone for his 2019 performance against his former side.
"It was great to see Lachie play so well against his old club," Fagan said.
"I know he was a little disappointed last year with his performance when we played them in Perth but today, I thought he was critical for us winning stoppages and kicked a couple of handy goals."