OAKVILLE, ON - JULY 24: Dustin Johnson of the United States prepares to tee off on the first tee during the final round of the RBC Canadian Open at Glen Abbey Golf Club on July 24, 2016 in Oakville, Canada. (Photo by Vaughn Ridley/Getty Images)
OAKVILLE, ON - JULY 24: Dustin Johnson of the United States prepares to tee off on the first tee during the final round of the RBC Canadian Open at Glen Abbey Golf Club on July 24, 2016 in Oakville, Canada. (Photo by Vaughn Ridley/Getty Images)