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ST ANDREWS, SCOTLAND - JULY 15: Arnold Palmer of the United States acknowledges the crowd on the 18th green during the Champion Golfers' Challenge ahead of the 144th Open Championship at The Old Course on July 15, 2015 in St Andrews, Scotland. (Photo by Mike Ehrmann/Getty Images)

ST ANDREWS, SCOTLAND - JULY 15: Arnold Palmer of the United States acknowledges the crowd on the 18th green during the Champion Golfers' Challenge ahead of the 144th Open Championship at The Old Course on July 15, 2015 in St Andrews, Scotland. (Photo by Mike Ehrmann/Getty Images)
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Getty Images Sport Mike Ehrmann