ST ANDREWS, SCOTLAND - JULY 13: Louis Oosthuizen of South Africa plays a practice round 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: Louis Oosthuizen of South Africa plays a practice round ahead of the 144th Open Championship at The Old Course on July 13, 2015 in St Andrews, Scotland. (Photo by Streeter Lecka/Getty Images)