8. Alex Rodriguez
Born on July 27, 1975, Alex Rodriguez is an American professional baseball player who plays as a third baseman at New York Yankees. He is the eighth wealthiest athlete of 2012 with a complete net value of $35 Million. Popularly known as Rod, he is one of the best all around players of all time. Twice he earned fame as National Group Most Useful Player. In December 2007, he signed a 10 year, $275 million agreement at Yankees. This agreement was the wealthiest agreement in baseball history.