Striker Lee Erwin is set to leave the Buddies after growing increasingly frustrated with his lack of game time in Paisley.
The former Motherwell and Leeds United hitman has only featured seven times this season, with most of those appearances coming off the bench as he struggled to convince boss Jim Goodwin he deserved a regular run out in the team.
Things came to a head when Alex Gogic was substituted on for Eamonn Brophy during the Saints' recent 1-1 draw with Motherwell, with Erwin the only recognised striker on the bench being overlooked.