Both Manchester clubs wanted the France international after he decided to leave Arsenal, and the playmaker has stated that winning the Premier League title with City has shown that he made the correct decision.
“I thought for a few months before making my decision, with my parents and my advisors,” Nasri stated, covered by Mirror Football.
“Patrick Vieira’s argument was that United are used to winning everything.
“Last season they won the league title and got to the Champions League final and if you sign this season and you play less well, it won’t have been a success for you.
“Whereas City is a club that’s building, which has recruited smartly with the likes of Sergio Aguero, and if you win the title you’ll be part of history.
“I weighed up the pros and cons, Roberto Mancini was calling me every day and I decided to go there.
“I came to Manchester to help the team become champions. Next season the club’s ambition is to go further in the Champions League and win the title again.
“In terms of statistics, it’s not my best season. Last season I was much more prolific in front of goal with Arsenal.
“But what counts is the team and the title with Manchester City, so it is my best season,” he confessed.
By Gareth McKnight