Brisbane are reportedly set to pick up delisted free agent Jarryd Lyons from the Gold Coast Suns, after the Suns announced his axing on Wednesday.

Lyons played 37 games for the Suns over the past two seasons, after 55 games for the Crows in the five previous seasons.

Lyons averaged 24.58 disposals, 5.4 tackles, 7.2 clearances and 3.8 inside 50s per game this season.

The Lions are set to announce his signing when the delisted free agency period opens on Thursday.

In other news, Brisbane defender Jack Frost has announced his retirement from football, after 56 games across six years for Collingwood and the Lions.

Frost suffered 14 concussions during his career, and has received advice from a specialist that has prompted him to retire.

“I’m on an emotional rollercoaster at the moment which I’m sure will subside with time,” Frost told the club's website.

“I have days where I feel okay and have accepted the fact that I can no longer play but I also have days where I get quite frustrated and upset that this is how it has ended.

“I’ve always played with the people I love most in mind and to hear their support recently has really tugged at the heart strings.

“No one wants their career to end, let alone like this and it certainly wasn’t how I expected it to finish.

“I do, however, value my health and the rest of my life and if I can be healthy and avoid further damage to my head it’s a no brainer, pardon the pun.

“I have met some incredible humans on my journey and some I will call lifelong friends so it’s certainly not all bad.

“I will miss the environment and how lucky I was to play but am also excited to explore my future and the opportunities that will present themselves.

“I will forever be grateful to both the Lions and the Pies for the opportunities they have given me to fulfil a childhood dream and will always hold my AFL career close to my heart.”