Striker Lewis Guy is at the centre of an injury scare.
The former Doncaster Rovers and MK Dons star, 27, was forced to withdraw from Saturday’s squad which travelled to Tynecastle to play Hearts.
Guy, who has netted five times this season, sustained a hamstring injury 24 hours before the game and had to pull out.
It’s understood that Guy’s injury could stem from a nerve problem.
Buddies boss Danny Lennon, though, hopes the big centre forward can return to training today.
Lennon said at the weekend: “Lewis had a hamstring problem on Friday at training and he had to pull out.
“It was a ‘nervy’ injury, so we’ll see how he is on Monday.”
Guy’s presence and pace was missed at the weekend as Saints slipped to a 1-0 defeat in Gorgie.
Lennon opted to play just the one striker – Steven Thompson – up front, hoping to use the extra man to stifle Hearts in the middle of the park.
Lennon added: “We withdrew a striker and aimed to block up that midfield area and tried to make us difficult to beat and I certainly believe we did that.”