Fremantle defender Brandon Walker emerged with new headgear at training on Monday, donning a helmet as he continues his recovery from multiple concussions this season.

The Dockers are yet to reveal a return-to-play timeline for the 23-year-old, who has spent more than a month on the sidelines and remained listed as TBC on the club’s latest injury list as of June 2.

The club’s cautious approach to the fleet-footed backman follows two head knocks across the span of two weeks while playing for Peel Thunder in the WAFL earlier this year.

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Walker has not featured for the AFL side since round one, with soreness ruling him out of the round two clash with Melbourne.

He has made five appearances for the Thunder but has not played at any level since May 9, when he sustained his latest concussion.

Walker appeared in good spirits at Fremantle’s Cockburn training base on Monday, donning his new helmet as well as a long-sleeve version of the club’s Stealth jumper.

The Dockers will wear the dark kit against Geelong in a blockbuster Thursday night clash at Optus Stadium, which will be live and free on Seven and 7Plus.

Peel also return to the WAFL fold this weekend, following a bye to align with the AFL side. The Thunder take on East Perth at Lane Group Stadium in Mandurah, with a chance to pinch top spot on the ladder from current leaders Claremont.