Jeremy Cameron and Josh Treacy during the round seven match between Geelong and Fremantle at GMHBA Stadium, April 30, 2022. Picture: AFL Photos

FREMANTLE coach Justin Longmuir has put his team on "red alert" for Jeremy Cameron as the Dockers attempt to claw their way back into the top four.

Cameron will notch his 250-game milestone in Geelong's clash with Fremantle at Optus Stadium on Saturday.

BROWNLOW PREDICTOR Check out all the votes

The 31-year-old has been in hot form this season, kicking 45 goals across 19 games.

He was particularly damaging against Adelaide last week, with his six-goal haul leading the Cats to a crucial five-point win.

01:58

With Fremantle still missing skipper Alex Pearce (fractured arm), either Brennan Cox, Luke Ryan or first-year defender Josh Draper will get the job on Cameron.

"He's in phenomenal form," Longmuir said.

"I think their forward line and forward mix is really dangerous. He's a vital part of that. He kicked six last week and looked dangerous.

"He's got a lot of different ways he can beat his opponent.

"We're on red alert with him, along with a lot of their other forwards."

Fremantle has undergone a week of soul searching after coughing up a 25-point lead in the last quarter on the way to a one-point loss to Essendon.

Players celebrate after the final siren of the round 21 match between Essendon and Fremantle at the MCG, August 4, 2024. Picture: AFL Photos

The Dockers' midfield - usually a strength - copped a lesson in the clearances during key parts of the game.

The return of Nat Fyfe from suspension will help strengthen Fremantle's on-ball brigade, but Longmuir has also spent the week digging deeper into what went wrong.

"I didn't think we were as good as we needed to be in the contest," he said.

"Our centre bounce wasn't great all day, we were beaten at stoppages badly in the first half.

Zach Merrett gets away from Hayden Young during the round 21 match between Essendon and Fremantle at the MCG, August 4, 2024. Picture: AFL Photos

"The way we defended the ground wasn't up to our expectation.

"We don't want to play the game from our back half and rely on our ball movement to keep us in games and get in front.

"It's not sustainable, it's not the way we play. We reviewed that."

Geelong's win over Adelaide moved them into fifth spot with a 13-7 record, just percentage adrift of third-placed Port Adelaide.

Given Geelong faces St Kilda and West Coast in the final two rounds, a win over Fremantle will put them in the box seat to seal a top-four berth.

Fremantle (12-7-1) sit sixth and face a tough run home against premiership contenders Geelong, Greater Western Sydney (away) and Port Adelaide (home).

Cats coach Chris Scott is expecting Fremantle to be a formidable foe in the clearance battle, especially with the likes of Caleb Serong, Andrew Brayshaw, Hayden Young and Fyfe in there, along with ruck duo Sean Darcy and Luke Jackson.

"Their personnel is elite. They've got some good, young midfielders in there who are pretty dynamic," Scott said.