Arsenal manager Arsene Wenger has confirmed that defender Laurent Koscielny is expected to be on the treatment table for three weeks with a hamstring injury.
The Frenchman was expected to miss Sunday's Premier League clash against Manchester United at Old Trafford, but it seems as though the defender will miss a few more fixtures.
Koscielny, who has been a dominant figure in the Gunners' defence this season, suffered the injury during his side's 3-2 defeat to Olympiacos in Tuesday's Champions League game.
In this morning's press conference, Wenger confirmed that a three-week layoff is likely for Koscielny, meaning that the 30-year-old will miss France's friendlies against Armenia and Denmark on October 9 and 12 respectively.
Mathieu Flamini and Mikel Arteta have also been ruled out of this weekend's match, but Francis Coquelin should be fit.
