But there is still one position that needs addressing – right-back.
Arteta says he has four options at right-back in Hector Bellerin, Calum Chambers, Cedric Soares and Ainsley Maitland-Niles.
However, not even he knows who his best player is in that position.
When asked about his right-back situation at his press conference on Thursday, Arteta said: “Well we have different options and different qualities. With Hector, with Cedric, with Calum, with Ainsley.
“We’ve had a lot of issues in pre-season. They have missed training sessions with Covid, they’ve been injured, some of them they haven’t featured.