Manchester United name Aon Corp as new £80m shirt sponsors from the 2010-11 season. The deal is believed to be a £20m-per-season, four-year partnership with the American financial giant.

David Gill, the United chief executive, said of the Aon deal: "Today's announcement clearly strengthens our position as one of the biggest clubs in world football.

"We look forward to being closely aligned with the world leader in risk management, a firm which shares our values and is an exciting partner for Manchester United."