This collective is set to grow with midfielder Luke Dunstan all but certain to miss out on a new deal for 2022.
Clavarino was made to wait 1,283 days before making his debut in a red, white and black guernsey and completed his 2021 campaign with a total of five senior appearances.
The 21-year-old was selected with a third round draft pick in 2017 and had previously been earmarked for a role St Kilda's back six of the future.
For Alabakis, a chance at senior level never arose during his three-year stint with the Saints.
Stopping the tape at 211cms, the Malaysian-born ex-Basketballer had been the equal tallest man to ever earn a place on an AFL list after being taken with a category B rookie pick at the cessation of the 2018 season.
Alabakis was seen by all within the club's four walls as a project player that held the potential to eventually fulfill the club's rucking duties on account of his imperious height.
In an official statement released on Monday evening, St Kilda's head of list management James Gallagher thanked the popular pair for their service.
“While these decisions are part of the business of football, they are never easy,” Gallagher said.
“Both Oscar and Sam are both well-liked players who have really grown and developed during their time with the club.
“We thank them for their dedication to the Saints and wish them all the best for the next chapter in their lives.”
It is yet to be seen whether either player will be afforded a lifeline at an opposition club.