Stewart Cink

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Stewart Cink

Power 100 rank: 65
Sport: PGA golfer
Age: 36
Most recent notable achievement: Won 2009 Open Championship
Earnings: $4.6 million
Key sponsors: Nike

Why he's on the list: Cink may lack some name recognition outside golf circles, but he's a fan favorite within golf and has successfully ventured into social media. He has more than 1 million followers on Twitter.