Arsenal manager Arsene Wenger has confirmed that Bacary Sagna will miss Wednesday's match at home to Hull City in the Premier League.
The French defender is struggling with a hamstring injury following Saturday's 3-0 win at Cardiff City.
Carl Jenkinson will deputise at right-back for the Gunners against Hull at the Emirates Stadium.
Meanwhile, Lukas Podolski has returned to training for the North London club after a lengthy spell on the sidelines with a hamstring problem.