We tune in for the entertainment (and maybe for a little eye candy), and the highest earning American athletes know they're appreciated. These guys might suffer from injuries here and there and endure grueling training schedules, but they certainly aren't hurting for cash. In fact, their income is so high that Sports Illustrated compiles an annual list it calls the Fortunate 50. Can you guess who scores the most money and what type of athletes are more likely to rake in cash ? Take the quiz!