Theo Walcott reveals what worries him the most about Arsenal as his old club lose 2-0 in semi-final first leg against Newcastle... while Jamie Redknapp labels the Gunners 'toothless' without injured Bukayo Saka

Mikel Arteta's side have been left with a mammoth task if they want to reach the final of the competition after losing 2-0 at the Emirates in their semi-final first leg tie on Tuesday night.