Diaby made just 182 appearances during an eight-and-a-half year spell with the Gunners, and the Frenchman feels that he had "no limits" before he spent a lot of his time at the Emirates Stadium in the treatment room.
The 30-year-old France Football: "I have no limits. Once upon a time, people would ask me about the Ballon D'Or.
"I told them I dreamt about it. I have always had big ambitions, like to become one of the best in my position. I think that I had the potential to achieve that.
"I am not saying it pretentiously, but some people in life are ambitious, others aren't."