Oxlade-Chamberlain says the club never doubted that they could be among the frontrunners in 2013/14 and is convinced that they will be there or thereabouts when the silverware is handed out.
He told the Daily Telegraph: "We've been contenders ever since I came to Arsenal. Or at least that's the feeling in the squad. We really think we can take the title.
"Obviously it hasn't happened in recent seasons. But in the form we showed at the end of last season, and - when I was watching from the sidelines - in the spirit we've shown at the start of this, in the derby, everyone was fighting for each other.
"That team spirit, you can't buy it. That, along with our manager and the signings, I'm full of optimism that this season can be a good one.
"We think we can win the title. Just like we believe we can win every competition we're in. If you don't believe that, then you don't deserve to be at Arsenal."
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