Jason Day fought through symptoms of vertigo to share the 54-hole lead at the U.S. Open in one of gutsiest rounds of the year. Day revealed Wednesday that he had another bout with vertigo during the seven holes he played Saturday in the weather-delayed British Open at St. Andrews. Day won the Canadian Open the following week, two weeks later captured his first major at the PGA Championship and then won two FedEx Cup playoff events to reach No. 1 in the world for the first time in his career. More...