Jordan Spieth, the No. 1 ranked golfer in the world and the highest-paid golfer in 2015, has signed a deal with Coca-Cola to appear in marketing and participate in other activations for the global soft drink brand. Spieth, just 22, took in $53 million last year, with $23 million in winnings and the rest from endorsements and other off-the-course interests. He also has deals with Under Armour, AT&T, Rolex, NetJets and Titleist.