115th U.S. Open: Day 4 gallery

UNIVERSITY PLACE, WA - JUNE 21: Rory McIlroy of Northern Ireland tees off on the seventh hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: A detailed view of the shoes of Rory McIlroy of Northern Ireland on the fifth green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: (L-R) Rory McIlroy of Northern Ireland walks with caddie J.P. Fitzgerald across the sixth green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Billy Horschel of the United States talks to the media after his final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Harry How/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Billy Horschel of the United States talks to the media after his final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Harry How/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Billy Horschel of the United States talks to the media after his final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Harry How/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: LPGA player Natalie Gulbis reports for Fox Sports during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Rory McIlroy of Northern Ireland celebrates after holing a long birdie putt on the 13th green as his caddie J.P. Fitzgerald looks on during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Boats are seen in the Puget Sound during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: J.B. Holmes of the United States celebrates making a putt for birdie on the fourth hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Harry How/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Branden Grace of South Africa takes a drop on the first hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jason Day of Australia waits with his caddie Colin Swatton on the fifth tee during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ezra Shaw/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Rory McIlroy of Northern Ireland hits his tee shot on the 15th hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States reacts on the fourth green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Rory McIlroy of Northern Ireland walks off the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: John Senden of Australia (L) shakes hands with Rory McIlroy of Northern Ireland on the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Matt Kuchar of the United States watches his tee shot on the 14th hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Harry How/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States reacts to a missed putt on the ninth green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States putts on the second green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ezra Shaw/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Branden Grace of South Africa hits his tee shot on the ninth hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Andrew Redington/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States waits on the second green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ezra Shaw/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Adam Scott of Australia celebrates with his caddie Steve Williams on the 18th green after a six-under par 64 during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States celebrates a birdie putt on the 16th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Louis Oosthuizen of South Africa throws his ball to the crowd after his putt for eagle on the 14th hole during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States leans on his caddie Michael Greller after a birdie on the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Mike Ehrmann/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States watches a missed birdie putt on the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States walks off the 18th green after making par during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Mike Ehrmann/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States waves to the gallery after a birdie on the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by David Cannon/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson of the United States walks off the 18th green after making par during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Mike Ehrmann/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Dustin Johnson (2nd R) of the United States, Jason Day (R) of Australia, caddie Colin Swatton (2nd L) and caddie Austin Johnson (L) shake hands on the 18th green during the final round of the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States kisses the trophy after winning the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States poses with the trophy after winning the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)

UNIVERSITY PLACE, WA - JUNE 21: Jordan Spieth of the United States poses with the trophy alongside Thomas O’Toole, Jr., President of the USGA after Spieth won the 115th U.S. Open Championship at Chambers Bay on June 21, 2015 in University Place, Washington. (Photo by Ross Kinnaird/Getty Images)