Manchester City signing Samir Nasri admits a single clause was the difference between him staying and leaving Arsenal.

The Frenchman completed his move to City last week.

Nasri was asked about why did not extend his contract at Arsenal last year, but explained to L'Equipe: "Why didn't I extend at Arsenal last autumn? They made me an offer and my advisers made another one.

"In this last one there was a clause that Arsenal officials didn't really accept.

"Then, it lasted. When they came back to offer me again in June, I made my decision. In my mind I wanted to leave, above all after the very difficult end to last season and I also already had nice contacts.

"At first Arsene Wenger wanted to keep me. Then, both clubs needed time to agree a transfer fee.

"My agents worked well. With the lawyers they wanted everything to be in order. When the transfer is big, you have to be patient. I am also happy Arsenal could get a nice fee. I prefer to leave that way than being a free agent. I did the same at Marseille. But that €28million fee doesn't put me under any pressure."

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