Saka was flat for Sunday's 0-0 draw at Manchester City.
Arteta said: "Bukayo Saka is fine. We haven't trained as we've been recovering. We will see whether he's in the best condition to start or not.
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"We are preparing in the best possible way.
"(Gabriel) Martinelli is available because he was available to play against Manchester City. We will train today and see the state of every player and then make decisions tomorrow.
"We are pushing for each other and helping each other to contribute in any way. We are going to need everybody."