Arsene Wenger has described Arsenal's defence as "a bit soft" during their Premier League defeat to Stoke City on Saturday.
The Gunners were 3-0 down by half time at the Britannia Stadium, and finished with a 3-2 defeat after Calum Chambers was sent off in the second half.
Wenger told reporters: "I think we were a bit inexperienced at the back. We couldn't play Laurent Koscielny or Nacho Monreal and we were maybe a bit soft to cope with what they offered."
The result leaves Arsenal sixth in the table, 13 points behind leaders Chelsea.
