Jason Day finished his round in the U.S. Open at Chambers Bay after collapsing while walking to the ninth green, his last hole of the day.
Day, who has been struggling with issues of dizziness for several weeks, crumpled to the ground and stayed there for several minutes while being attended to by his caddie and officials. His wife, Ellie, also was there. He did not appear to lose consciousness.
Day eventually got up and unsteadily walked to the shot he had hit into the bunker of the par-3 hole. He blasted the shot onto the green and missed the par putt to make bogey to finish with a 70 that put him in a tie for 11th place.
As Day left the green, he knelt down on one...