St Mirren are still awaiting international clearance to complete the signings of Israeli striker Roy Dayan and Argentine Franco Miranda.
Miranda has been released by Helsingborg, having previously been on the books of River Plate.
He started his career with CAI in his homeland before joining River Plate, then Racing Club before his move to Sweden.
Manager Gus MacPherson had told BBC Sport: "We have made our decision and it is just about getting the deals done."
The 23-year-old Dayan is available after leaving Maccabi Tel Aviv.