FREMANTLE'S captain for 2017 is expected to be decided on Tuesday, with club great Paul Hasleby calling for Brownlow medallist Nat Fyfe to take the mantle from David Mundy.

WATCH IT LIVE: Check back here at 2.30pm AWST as the Dockers announce their captain

Fyfe was overlooked for the captaincy in 2016 when the players voted for Mundy following the retirement of long-time skipper and champion forward Matthew Pavlich.

But after a period of upheaval following a four-win season, Hasleby was adamant it was time for Fyfe to take charge of a young list.

"It’s a transitioning year for Fremantle and I think they’ve got the age demographic where it’s time for Nathan Fyfe to step into that role," Hasleby told The West Australian.

"He would really do well being supported by David Mundy and Aaron Sandilands, two champions of the football club.

"He’s the best player in the team (and) he’s the one that stands up in the key moments when a captain should stand up."

AFL.com.au understands that Fremantle's captaincy announcement could come as soon as Tuesday afternoon, when the player vote is completed with the assistance of Leading Teams.

The decision comes at an awkward time for Fremantle as Fyfe enters 2017 as the AFL's most in-demand free agent.

Coach Ross Lyon at the weekend said he would be shocked if a player left the club because he had unfulfilled captaincy ambitions.