Manchester United Football Club is the richest sports team in the world. The English club is worth more than $1.8 billion. The Spanish soccer team Real Madrid is worth $1.3 billion. These clubs have enough money to pay the high salaries of the best players in the world. For example, in 2008, Manchester United paid Cristiano Ronaldo more than $18 million. They paid Wayne Rooney more than $16 million. Other teams also spend a lot of money on their players. These wealthy clubs include Barcelona in Spain, AC Milan in Italy, and Chelsea in England. As a result, these teams have been very successful. For example, Manchester United won championships in 2006, 2008, and 2009. Money is clear advantage for these professional teams.