Barton, who has missed his team’s last three league games through suspension, sustained a knock in training this week and is doubtful for the encounter at Loftus Road.
QPR coach Chris Ramsey will make a late decision on Barton, while Mauricio Isla (knee) and Darnell Furlong (calf) are also doubts. Defender Richard Dunne and midfield pair Leroy Fer and Alejandro Faurlin are all sidelined with knee injuries.
Everton midfielder Kevin Mirallas could be out until next month with a leg injury, while Gareth Barry is banned.
Aiden McGeady is fit again though following a knee problem and could make his first appearance since January.