The 24-year-old revealed to Die Welt how Wenger called and spoke to him in perfect German on the morning of deadline day to convince him to move to London.
"In some way, that conversation flicked a switch in me and made me realise what I had lost at Madrid - transparency, trust, respect," Ozil said.
"He told me exactly how he saw me, how he wanted to use me and what he expected of me."
He added: "I would have even joined Arsenal for free."
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