The pair were both delisted from their respective clubs following the conclusion of last season, with Lienert returning to SANFL club Sturt, while Naish also ventured to the South Australian league in joining Norwood for the 2022 season.
The 27-year-old revealed in November last year that he had kept in contact with an array of clubs in hope of securing an AFL lifeline, before signing with the Double Blues in the SANFL prior to the new year.
Naish faced a similar fate at the end of last year, having played nine matches for the Tigers across four years at Punt Road, joining Richmond as a father-son selection in 2017.
Both Lienert and Naish are now understood to be within a chance of gaining a reprieve in the AFL, with the Saints set to add the pair to their pre-season program according to 7 News' Mitch Cleary.
St Kilda is looking to two ex-AFL players as possible reinforcements for the list spot opened up by Nick Coffield’s ACL.
— Mitch Cleary (@cleary_mitch) February 12, 2022
The Saints currently have two available list spots for the upcoming season, however that could stretch to three following Nick Coffield's season-ending ACL injury.
Standing at 195cm tall and able to accurately move the ball in defence, Lienert frames as the like-for-like replacement for Coffield. The versatile defender averaged a disposal efficiency rating of 97% in Port Adelaide's reserves last year in be a formidable option in defence.
The Saints will have until March 9 to confirm their Supplemental Selection Period additions, with any remaining list spots potentially being held for the Mid-Season Rookie Draft in June.
The tall utility, who averaged 19.7 disposals, 7.7 marks, 4.4 tackles, 2.4 clearances and over a goal per game last year, was a standout for the Eagles in their premiership-winning campaign, where he earned best afield honours in their grand final victory.