Partick have decided to cancel the contracts of veteran defender Hugh Murray and forward Gerry O'Donnell.
St Mirren midfielder Hugh Murray is set to leave the club at the end of the season.
Craig Samson and Hugh Murray have followed David Barron and Steven Thomson in committing to St Mirren.
St Mirren striker Gareth Wardlaw is set to be sidelined for up to six weeks with ankle ligament damage.
St Mirren midfielder Hugh Murray has signed a new deal at the club.