Geoff Cameron has returned to full training following his ankle injury.
The American, on loan at QPR from Stoke City, has been out of action since suffering ligament damage against Leeds in December.
Cameron trained with the rest of the first-team squad on Thursday but Angel Rangel is not expected to resume full training for another week or two.
Rangel suffered a thigh injury, also in the defeat at Leeds, and has taken longer to recover than initially expected.
QPR hoped both men would return to action in February along with Tomer Hemed, who is playing again following a hernia operation.