Alex Song also left for Barcelona in the summer just as Cazorla was arriving.
Cazorla told the Mail on Sunday: "Well, I believe it was a number of things [that caused them to switch teams]: they had good offers and, in the end, they decided to change teams. I believe that things are positive at Arsenal, that we are capable of fighting with those teams. Of course, Arsenal haven’t won anything for many years but I believe that Arsenal always show passion and are a team of winners.
"We want to challenge for the title, hopefully. The objective is to fight for it. It’s clear there are lots of great teams, not just City — there are also Manchester United, Liverpool, despite the fact they haven’t started so well, Tottenham, Chelsea. There are a lot of teams challenging, no? The objective is to win it and be there fighting right until the end, to have the chance of winning it."