Full-back Bacary Sagna could return to the Arsenal squad after recovering from a broken leg. England midfielder Jack Wilshere also played for the under-21s earlier in the week and may be on the bench as his rehabilitation from ankle and knee injuries continues. Midfielder Alex Oxlade-Chamberlain (hip) faces a fitness test, but defender Kieran Gibbs (thigh) and forward Theo Walcott (chest) remain sidelined, along with first-choice goalkeeper Wojciech Szczesny (ankle), midfielder Abou Diaby (thigh) and Czech winger Tomas Rosicky (hamstring).
QPR captain Park Ji-sung is doubtful. The former Manchester United midfielder suffered a knee injury in the 1-1 draw against Everton and has not trained fully all week. Ryan Nelsen and Armand Traore, who were both substituted during the game, are both available to manager Mark Hughes who is still looking to guide QPR to their first league win this season. Both Fabio (hamstring) and Andrew Johnson (knee) remain sidelined.