Nasri to sit out Barca visit
Samir Nasri is out the first leg of Arsenal's Champions League tie against Barcelona, while Alex Song and Theo Walcott have picked up knocks.
Defensive midfielder Song is struggling with a leg problem having been inadvertently kicked by team-mate Laurent Koscielny during the Gunners' 2-1 win over Everton at Emirates Stadium and replaced by Abou Diaby.
Young winger Walcott, meanwhile, completed the full 90 minutes but was left nursing an ankle problem after the final whistle.
