Arsenal's Per Mertesacker: Still weeks away from return

Mertesacker (knee) has returned to light training but is still weeks away from joining the first team.

Analysis:

Mertesacker has yet to play this season due to the injury, and he'll likely find playing time very hard to come by when he is fit, with Laurent Koscielny and Shkodran Mustafi locked into the two centre-back spots.