The business of sports is everywhere from the shoes we wear, to the cars we drive, to the food we eat. Sports stars have a big impact on many of the products we buy. Companies routinely pay millions of dollars to have their products endorsed by famous athletes. These days, many sports stars are stepping off the field and into the arena of business, creating empires using their celebrity status. How does a sports legend become a business mogul? Find out in Urban Entrepreneur: Sports.