MEMPHIS, TN - JUNE 10: Dustin Johnson takes a practice swing on the 17th hole during the final round of the FedEx St. Jude Classic at TPC Southwind on June 10, 2018 in Memphis, Tennessee. (Photo by Stan Badz/PGA TOUR)
MEMPHIS, TN - JUNE 10: Dustin Johnson takes a practice swing on the 17th hole during the final round of the FedEx St. Jude Classic at TPC Southwind on June 10, 2018 in Memphis, Tennessee. (Photo by Stan Badz/PGA TOUR)