There are several senior players currently away with their national teams during the international break.
Unai Emery will be hoping to see his players save and sound when they are back to feature against Newcastle in the Premier League match next Saturday.
However, there has already been news of one injury scare during the break.
Arsenal player Lucas Torreira, who signed in a £27 million deal from Sampdoria in the summer picked up an injury while on international duty.
Torreira played just 45 minutes of Uruguay's game against Mexico and was pictured watching the second half from the bench with ice strapped round his leg.
Arsenal fans fear the worst as Torreira started in the league and looked almost certain to get the nod from Unai Emery for the game at Newcastle next Sunday.
Here's a selection of what's been said on social media.
https://twitter.com/AFCPressWatch2/status/1038265652417576966
https://twitter.com/Adzzor/status/1038517004376985605
https://twitter.com/Richjeffries66/status/1038515268614537216
https://twitter.com/cfozzie1/status/1038412607739322369
https://twitter.com/Kripsy_AFC/status/1038270877891145728
https://twitter.com/HeeroChima/status/1038492426690875393