It's going to be a tough one for Arsenal to manage actually because having their captain and a key player suffer injury is not only affecting the team but the players psychology could be in a messy state too because they need that leadership on the pitch who helps them put things in order and also the fact that he doubles up as a key player to the team is challenging too. For the while he will be away, Arsenal could just try to make sure not to suffer so much of a decline rather maintain a pase around what they have got already and that way they can still be sure of making a way to stay in the title race this season, this has to be one of the disadvantages of have strong dependence on a particular play in a team.
This is a bad situation for Arsenal because they can't play without their 3 mainstay midfielders when they have to compete with one of the strong contestants in the Premier League Tottenham Hotspur, Arsenal have to play away in this match the chances between them are also not too far apart a fair result for both of them might get a draw but Mikel Arteta has to work hard in making the right formation because Tottenham might know their current weaknesses.
In addition, they will soon also play their first match in the Champions League on September 20 against last season's Europa League champions Atalanta I think Arsenal is in a pretty critical situation now how will Mikel Arteta handle this?