Power 100 rank: 97
Rank last year: Unranked
Sport: NFL/Pittsburgh Steelers—L
Most recent notable achievement: 2011 Pro Bowl (4th Selection)
Earnings: $13.8 million
Key sponsors: NA
Why he's on the list: It's hard to forget James Harrison's epic 100-yard interception and touchdown run in Super Bowl XLIII—the longest play in Super Bowl history—and he's one of the league's best linebackers. However, 2010 was marred by fines as Harrison was repeatedly told by the league to tone down the late and violent hits—not good for getting big endorsements.