Derrick Williams, Stewart Downing and an unnamed Rover all missed training on Thursday morning, but Tony Mowbray says he expects all three to be available this weekend.
Mowbray's men make the trek to the capital eager to return to winning ways having gone two outings without a win following defeat against Luton Town and a draw against Nottingham Forest.
Rovers bossed both games but only managed a point from the two outings, but will be hoping for better fortunes on Saturday afternoon.
Aside from the absences of Ben Brereton and Dan Butterworth, Mowbray has revealed that he expects to have a fully fit squad available to him for the journey down to the Kiyan Prince Foundation Stadium.
“There’s a few who didn’t train on Thursday to be honest," he said ahead of the outing.
"Stewart Downing didn’t train, Derrick Williams didn’t train and there was someone else who didn’t train, but I can’t remember who.
“But the physios say that they should be okay, so we’ll assess before the game and attempt to pick a team that will cause QPR some problems.
“Derrick got a knock against Nottingham Forest and was hobbling about a bit after getting a knee in the back, I think.
“Stewart’s just a little bit tight. I often think with footballers, in a three-game week, they’d be better off spending a day getting a massage or relaxing in a bath rather than running around on a training pitch,"he added.
“Ultimately they have to put themselves in a position to try and play a game.
"I have no problem with players missing training on a Thursday after a three-game week, as long as they train on a Friday."