By Arsenal correspondent Tony Hughes

Arsenal have been hit by a defensive injury crisis after their Premier League clash against Leicester on Sunday.

Laurent Koscielny has joined Gabriel and Kieran Gibbs in the treatment room after being substituted at half-time in the Gunners’ 2-1 win at Emirates Stadium.

Koscielny suffered a dead leg and was replaced in the second half by Calum Chambers as Arsene Wenger was forced to field his second-choice centre-back partnership.

Gabriel was unavailable for selection due to a hamstring injury after he had initially been pencilled in to start the top-of-the-table clash.

Gibbs was also absent after turning his ankle in training earlier in the week.

Arsenal have a six-day break before next Saturday’s FA Cup clash against Hull and then travel to Barcelona for their Champions League last-16 tie three days later.