HARTFORD, WI - JUNE 15: Amateur Joaquin Niemann of Chile and caddie Claudio Correa walk to tenth green during the first round of the 2017 U.S. Open at Erin Hills on June 15, 2017 in Hartford, Wisconsin. (Photo by Jamie Squire/Getty Images)
HARTFORD, WI - JUNE 15: Amateur Joaquin Niemann of Chile and caddie Claudio Correa walk to tenth green during the first round of the 2017 U.S. Open at Erin Hills on June 15, 2017 in Hartford, Wisconsin. (Photo by Jamie Squire/Getty Images)