Fitness fight for Koscielny

Arsenal defender Laurent Koscielny faces a fitness test on his calf injury ahead of tomorrow’s Barclays Premier League trip to Sunderland, but captain Thomas Vermaelen (ankle) has been ruled out.

Midfielders Aaron Ramsey (calf) and Francis Coquelin (hamstring) should be available, along with England forward Theo Walcott (foot).