Great fullback crisis 2013?
Arsenal will have to go without their two nominal starting fullbacks, however, as both Bacary Sagna and Kieran Gibbs are out, according to Arsene Wenger:
On Bacary Sagna…
Sagna has a problem with his knee. He will be out for Saturday certainly. I don’t think there are any other knocks really.
On Kieran Gibbs…
He is still out. He will be a few weeks yet.
Of course, the backups aren't that bad (and might not be rightly considered as "backups", either). Expect to see Carl Jenkinson, fresh back from suspension, and Nacho Eraso "Eraser Get It" Monreal at right and left back, respectively.
Other than that, there are no Arsenal knocks. Repeat: NO ARSENAL KNOCKS. Everyone please find your nearest religiously-affiliated building and enter it and thank something.*
*Unless you're like me, an atheist pinko pig dog, in which case, worry like the dickens.