Fremantle Dockers forward-ruck hybrid Rory Lobb has reportedly attracted interest from St Kilda ahead of the upcoming trade period.

The 29-year-old was linked to a move back to his old club GWS last year, despite being contracted with the Dockers, but could request another trade across the Nullarbor to the east coast in 2022.

Up to three Victorian clubs are reportedly interested in Lobb, with St Kilda among those interested in landing the tall utility's services on a three-year deal worth $500,000 per season, The Age reports.

The deal heavily hinges on the future of Saints ruckman Paddy Ryder, who turned 34 in March and has been struck down with injury, only playing 26 games in the past two seasons.

The Saints have implemented a strong ruck partnership with Rowan Marshall and Ryder over the past couple of seasons, and the arrival of Lobb would allow for that partnership with Marshall to continue.

Paddy Ryder and Conor Nash during the AFL match between Hawthorn and St Kilda in Round 4, 2022 (Photo by Cameron Grimes / Zero Digital Media)

Mature-aged recruit Jack Hayes will also be around in 2023 as he recovers from a knee reconstruction, with the club verbally agreeing to sign Hayes for next season, further keeping St Kilda's ruck and forward stocks strong.

Lobb is still contracted at Fremantle until the end of 2023, with Fremantle showing no early indication of wanting to let the tall utility leave the club he joined in 2019.