QPR are assessing Kenneth Paal after the left-back went off injured during the 3-0 defeat at Hull.
Paal went down clutching his knee just before half-time and was withdrawn after trying to play on.
Jake Clarke-Salter came on and played in his place, with Rangers boss Neil Critchley opting against using Niko Hamalainen, who could well be on his way out of the club.
Paal has been a consistent performer this season since his arrival from Dutch side PEC Zwolle in the summer.
“Kenneth just felt the side of his knee and we wanted to get him to half-time because we didn’t want an unnecessary stoppage,” Critchley said.
“He took a whack on it and we’ll just have to see how he is in the next couple of days.”
Rangers were also without injured right-back Ethan Laird, and also Lyndon Dykes, who was admitted to hospital with suspected pneumonia on Friday.
“He’s OK. He’s been in hospital the last 24, 48 hours,” said Critchley.
“He’s on medication so hopefully we get some good news in the next 24 hours.”
Tyler Roberts went off in the second half with what appears to be a hamstring problem and Ilias Chair also picked up an injury in the final minutes but hobbled through to the end of the game.