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ST ANDREWS, SCOTLAND - JULY 20: Zach Johnson of the United States fist bumps his caddie Damon Green after making a birdie on the first playoff hole during the final round of the 144th Open Championship at The Old Course on July 20, 2015 in St Andrews, Scotland. (Photo by Andrew Redington/Getty Images)

ST ANDREWS, SCOTLAND - JULY 20: Zach Johnson of the United States fist bumps his caddie Damon Green after making a birdie on the first playoff hole during the final round of the 144th Open Championship at The Old Course on July 20, 2015 in St Andrews, Scotland. (Photo by Andrew Redington/Getty Images)
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