For the seventh consecutive year, SI.com has compiled a list of the 50 top-earning American athletes by salary, winnings, endorsements and appearance fees. The average earnings of those on the list have reached an all-time high of $26.2 million (up 11 percent from '09). Read more: http://sportsillustrated.cnn.com/specials/fortunate50-2010/index.html#ixzz0uMNg26sQ
