Port Adelaide has informed trio Jack Trengove, Cam Hewett and Kai Pudney they will not be offered contracts for the 2020 season.
Trengove only played three games for the club after joining the Power from Melbourne as a delisted free agent, with all three appearances coming in 2018.
Hewett played 64 games with the Power's SANFL side, but was unable to break into the senior side.
Pudney was a Category B rookie, and played 15 games in the SANFL in 2019.
“Jack, Cam and Kai have each represented our club with pride and professionalism,” Port Adelaide's General Manager – Football, Chris Davies, told the club's website.
“But we have reached the time of the year when the club needs to make difficult decisions about the future of our playing list.
“Each of the players have been popular and hardworking members of our group and we wish them well for their individual futures.”