Aubameyang signed a hefty new three-year contract last summer but has failed to deliver this season and found himself in and out of Arteta's team in recent weeks, while also being dropped for the north London derby after arriving to the stadium late.
His situation at the Emirates has similarities to that of Mesut Ozil, who vastly under-performed while being on huge wages before eventually being exiled by Arteta.
But the manager said: "I'm always positive about the future but once you think about things that happen in the past or compare different situations and personalities I won't do that."
Asked whether Aubameyang was committed to the Gunners' cause, the Spaniard added: "Totally."
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