The most famous English football club of all time announced on Thursday that they have signed a four-year deal with the US insurance company AIG, which will earn them a record sum of 56.5 million pounds sterling.
"This is a great deal for Manchester United and it only confirms our status as the biggest club in the world," said executive director David Gill.
Manchester United, currently in second place in the English championship, led by the champions Chelsea from London, changed owners last year - becoming the US billionaire Malcolm Glazer and his family.
The current advertising deal, worth 9 million pounds sterling per year, with the mobile phone operator Vodafone will end after this season - two years earlier than originally agreed. Vodafone decided to focus its attention and funds on the UEFA Champions League.
A few days ago, the British media reported that Manchester United had ended negotiations with the British entertainment company Mansion regarding a sponsorship deal.
London's Chelsea, owned by Russian billionaire Roman Abramovich, signed a five-year, 50 million pounds sterling deal with South Korea's electronics giant Samsung in 2005.