Gary Waddock could be without midfield trio Martin Rowlands (calf), Gareth Ainsworth (hamstring) and Nick Ward (calf) when Ipswich come to Loftus Rd on Friday.
"We will give them fitness tests on Friday, and we will give them until the last minute to recover," Waddock said.
Ipswich, who have picked up only one point so far this season will be without the injured Nicky Forster.
They bring Simon Walton, Mark Noble and Gavin Williams back into the squad after missing the midweek Carling Cup game. Williams has recovered from a toe injury while Walton and Noble were cup tied.
Nick Forster misses the visit to Loftus Road though with a groin injury.
The full Ipswich travelling squad is:
Bowditch
Brittain
Bruce
Casement
Clarke
Currie
De Vos
Harding
Haynes
Lee
Naylor
Noble
Price
Richards
Sito
Supple
Walton
Williams
Wilnis