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LA QUINTA, CA - JANUARY 18: Bob Estes stretches on the driving range during practice for the CareerBuilder Challenge at PGA West on January 18, 2017 in La Quinta, California. (Photo by Harry How/Getty Images)

LA QUINTA, CA - JANUARY 18:  Bob Estes stretches on the driving range during practice for the CareerBuilder Challenge at PGA West on January 18, 2017 in La Quinta, California.  (Photo by Harry How/Getty Images)