QPR say Idrissa Sylla is likely to be out for two or three weeks and that Paul Smyth is close to a return – and have confirmed David Wheeler is expected to miss the rest of the season.
Wheeler, meanwhile, recently underwent surgery on an ankle problem which has bothered him for some time.
Rangers’ head physiotherapist Matt May told the club website: “David has had a problem with his right ankle.
“There are some loose fragments which have come off the bone and he had surgery yesterday to tidy that up.
“The recovery time for this is approximately three months so it will be touch-and-go whether he is able to play again this season, unfortunately.
“Idrissa suffered a grade two calf strain in training. He is looking to be back out on the grass by the end of this week so should be available for selection in approximately two to three weeks’ time.
“Paul had a minor right quad strain in training. He has been stepping up his functional rehab, and is looking to be back in training by the end of this week.”
May added that Jamie Mackie is still several weeks away from recovering from a back injury, Pawel Wszolek is in full training after suffering concussion in a recent friendly, and that Grant Hall has overcome his latest knee trouble.