The Gunners were beaten 2-0 by Bournemouth and could be without a plethora of first-team players when the Reds visit next weekend
Goals from Ryan Christie and Justin Kluivert after the break gave the Cherries a 2-0 win. The Gunners' cause was hampered by a first-half red card for William Saliba as he was deemed to have denied a goalscoring opportunity after a VAR review.
The dismissal means the France international will miss the match at the Emirates Stadium for a huge game between two Premier League heavyweights. It's not the only problem Mikel Arteta has ahead of the game either.
Kai Havertz, Gabriel Martinelli and Oleksandr Zinchenko were all considered doubts for the clash with the Cherries but were all fit enough to make the squad for Saturday's loss.
More will be known about the fitness of a number of players on Tuesday when Arsenal host Shakhtar Donetsk in the Champions League. They then host Liverpool at 4:30 p.m. on Sunday, October 27.