ST ANDREWS, SCOTLAND - JULY 13: Dustin Johnson of the United States looks on from 14th green during practice ahead of the 144th Open Championship at The Old Course on July 13, 2015 in St Andrews, Scotland. (Photo by Streeter Lecka/Getty Images)
ST ANDREWS, SCOTLAND - JULY 13: Dustin Johnson of the United States looks on from 14th green during practice ahead of the 144th Open Championship at The Old Course on July 13, 2015 in St Andrews, Scotland. (Photo by Streeter Lecka/Getty Images)