Patrick Vieira has retired from football and taken on a role as football development executive at Manchester City. GettyImagesPatrick Vieira was a World Cup winner with France in 1998 • Dall: Patrick Vieira's winning habit• Boateng on verge of Bayern switch• Adebayor talks up Madrid return Vieira, 35, joined City from Inter Milan in January 2010 to help provide leadership and experience, but his contract expired this summer. He told the club's official website: "This role is a fantastic new challenge for me and I am very grateful to Manchester City for offering me this opportunity. "I have a lot to learn about the non-playing areas of the business but there are many very experienced people here for me to learn from and I am