Arsenal star Kolo Toure has confirmed to skysports.com that he will be sidelined until November.
The Ivorian defender hurt his shoulder in the weekend win over Everton as he collided with Phil Jagielka and was forced off at half-time.
Toure will now be out for up to two weeks and although he insists that the injury is not too bad, it does mean he could miss four games for The Gunners.
"I hurt my shoulder badly, it was very painful but it is a job of a defender to take pain," he told skysports.com.
"And we won the game after going behind in our own stadium, and the injury is not too bad as we think I should be fine in ten to 15 days and ready to make a challenge."
Toure misses Tuesday's UEFA Champions League trip to Istanbul, where they will face Fenerbahce.
"The game in Turkey will be hard," Toure continued.
"We are missing most of our first-team defence [Toure, William Gallas & Bakary Sagna] but the other guys left can play at the level.
"[Mikael] Silvestre has got plenty to offer, he has won a lot in his career, so, it will be fine.
"Winning there will be make us stronger for the rest of the group."