OAKMONT, PA - JUNE 17: (L-R) Rickie Fowler of the United States, Rory McIlroy of Northern Ireland and Danny Willett of England shake hands on the 18th green during the continuation of the weather delayed first round of the U.S. Open at Oakmont Country Club on June 17, 2016 in Oakmont, Pennsylvania. (Photo by Rob Carr/Getty Images)