A large part of many athletes' incomes is provided by companies looking to capitalize on the celebrity of sports stars. European soccer star, David Beckham signed one of the largest endorsement deals in professional sports, a $160.8 million lifetime deal with Adidas. Beckham unveils his new Predator adidas boot and product line at the Adidas Sport Performance Store June 1, 2005 in New York City.

(AP Photo)