The Saints have made further list changes for 2020, delisting Brandon White and Bailey Rice and Robbie Young.
General manager of football Simon Lethlean thanked the trio for their contributions to the club.
“Bailey and Brandon arrived at the club together in 2015 and should be proud of the way they have acquitted themselves,” Lethlean told the club website.
“They are held in high regard by their teammates and coaches, and we wish them all the best for the future.”
“Robbie was one of a number of mature age recruits we selected in last year’s draft, and it was great to see him earn his AFL debut.
“With a number of small forwards on our list, unfortunately the opportunity at the Saints for Robbie has come to an end.
“As with the other boys, we thank him for his commitment to St Kilda and wish him and his family good luck for the next chapter.”
The three join David Armitage, Sam Rowe, Billy Longer and Lewis Pierce in departing the club this off-season.