Manager Stephen Robinson has today confirmed that Mikael Mandron is set to miss up to four weeks of action.
The French striker was substituted in the second-half of our William Hill Premiership defeat against Celtic at the start of the month after picking up a medial knee ligament injury. He joins Evan Mooney on the sidelines after the 17-year-old underwent surgery on his ankle.
However, Alex Iacovitti is set to return following his hamstring injury, while Conor McMenamin is progressing, though won't be ready until after the upcoming international break.
Speaking to the media ahead of Saturday's trip to Motherwell, the manager said: "Mikael Mandron will be out for about four weeks now with medial knee ligament injury.
"Evan Mooney has had really successful surgery on his ankle, but that will be him for the rest of the season now ready for next season. It was a decision that we had to make for both parties, for the club going forward and for Evan.
"Other than that, Alex Iacovitti had trained really well and played a couple of bounce games.
"Conor McMenamin is making progress and will be on the pitch after the international break but won't be available for this game."