Partick have added full-back Aaron Sinclair to their injury list ahead of their clash with Raith.
The Firhill side are already missing David Rowson and Darren Cole, with manager Jackie McNamara now bracing himself for further absentees.
Stephen O'Donnell, Paul Cairney, Scott Robertson and Alan Archibald spent Friday receiving treatment in a bid to feature against the Kirkcaldy men.
Tommy Stewart could return after a hamstring problem with McNamara looking for his men to keep playing the way they have been playing, but with one major improvement.
The Firhill boss said: "We are playing good football but are not converting that into goals.
"Hopefully we can put that right against a Raith side that will work us hard as they always do."
Rovers are hoping Willie Dyer overcomes a knee strain in time.
Dyer picked up the injury during Tuesday night's 3-0 defeat to Livingston and faces a race against time to run out against the Jags.
Captain Iain Davidson is also doubtful with a knee problem as the Kirkcaldy outfit look to complete a clean sweep over Thistle and boost their hopes of avoiding relegation trouble.
Manager John McGlynn said: "There are four games to go and everything is in the balance and we simply have to fight for everything.
"It does not matter that our record is good against Thistle this season, all that matters now is winning this game.
"We had built up a bit of momentum after going four games undefeated and we have to hope that we can get that back despite the Livingston result."