St Kilda Football Club has added Jonathon Marsh to its playing list as part of the Supplemental Selection Period.

The decision to enlist the 23-year-old defender came after the club opted to place draftee Jack Bytel on the long-term injury list as he recovers from back surgery.

WATCH INTERVIEW: Jonathon Marsh joins the Saints

General Manager of Football Simon Lethlean said Marsh would bolster the Saints backline for the 2019 season.

“We’re really excited to add Jonathon to our playing list,” Lethlean said.

“Following two seasons with East Fremantle in the WAFL, Jonathon moved back to Melbourne with his partner late last year with the express purpose of reigniting his AFL career.

“He has been training with Richmond’s VFL team throughout the pre-season and looked impressive as part of the Tigers’ senior intra-club game a few weeks ago.

“With the recent injuries to Jake Carlisle and Oscar Clavarino, Jonathon adds to our depth and importantly is someone we think is ready to play if required."

Marsh previously spent three seasons at Collingwood Football Club before moving home to Western Australia at the end of 2016.