McAuley was dismissed by referee Neil Swarbrick for a foul on Wilfried Bony which Dawson committed, but the red card was switched to Dawson after a review.
Ben Foster has been ruled out for six months with damaged crucial knee ligaments which the England keeper suffered in the Baggies’ last home game against Stoke while Callum McManaman is also out of the clash with a foot injury.
QPR manager Chris Ramsey has no fresh injury concerns ahead of the trip to The Hawthorns.
On-loan striker Mauro Zarate has returned to parent club West Ham to regain fitness while Richard Dunne and Leroy Fer are both out with knee injuries.
Darnell Furlong is also likely to miss the game with a calf problem and Alejandro Faurlin is a long-term absentee with a cruciate ligament injury.