![LeBron James](http://static1.businessinsider.com/image/513230beecad04f93c00000c-834-419/capture_20130302_105940.jpg?maxX=608&maxY=305)
ESPN
Each year, Bloomberg Sports determines who the 100 most powerful athletes playing in the United States are.
To determine the most powerful athletes, Bloomberg uses both "on-field" and "off-field" attributes. Only athletes who were active in the 2011-2012 season were considered.
On-field attributes include stats, like batting average, goals, points, touchdowns, etc. Off-field attributes consider the athlete's endorsement deals and social media presence.
Most of the athletes on the list are football players, followed by basketball, and baseball players. Not surprisingly,
- Lebron James
- Tiger Woods
- Peyton Manning
- Drew Brees
- Roger Federer
- Novak Djokovic
- Kobe Bryant
- Michael Phelps
- Tom Brady
- Aaron Rodgers