Shaquille O'Neal

David Liam Kyle/NBAE via Getty Images

Shaquille O'Neal

Power 100 rank: 9
Sport: NBA/Cleveland Cavaliers—C
Age: 37
Most recent notable achievement: 2009 NBA All-Star MVP
Earnings: $35 million
Key sponsors: Icy Hot, Li-Ning, Vitamin Water

Why he's on the list: The world of basic endorsements was not enough for Shaq in 2009, so he forayed into reality TV with his own show and garnered nearly 3 million followers for his popular Twitter page.