Who is back in training with Arsenal so far?

Who is back in training with Arsenal so far?Arsenal returned to pre-season training this week, but which players are available to Mikel Arteta ahead of the Gunners’ first friendly matches?Photo via Arsenal on TwitterArsenal made their official return to pre-season training at London Colney on Monday, but not all of Mikel Arteta’s squad are available, given many of them have been away over the summer for the World Cup.From footage and images of Arsenal’s training sessions so far