Arsenal's Laurent Koscielny picked up minor injury while training with the France squad and ruled him out of their next international fixture.
Arsenal who are already light on central defenders, could face another crisis situation if Koscielny or Mertesacker pick up any major injuries leaving on Chambers as their only recognized Central defender. However, the injury Koscielny isn't termed serious and the defender is expected to be fit for Gunners upcoming match against Hull City on the 18th of October.
With Arsenal already missing their important players like Ozil who's out for about 10-12 weeks and Ramsey out for at least a month, the title challenge might just fade away even before it starts.
Mikel Arteta, Walcott and Sanogo are all on the path to recovery, with Arteta supposedly ready to take on Hull and the other two should be ready to take the pitch by the end of this month according to Wenger.