Clichy out for Gunners

Arsenal defender Gael Clichy has been ruled out for up to a month with a suspected stress fracture in his back. Meanwhile, midfielder Tomas Rosicky returns to the squad for Wednesday's Champions League clash against AZ Alkmaar at Emirates Stadium following a knee problem. Striker Nicklas Bendtner (groin), goalkeeper Lukas Fabianski (thigh), Theo Walcott (knee), Denilson (back) remain sidelined.