Arnold Palmer frustrated by Billy Casper's silence at 1966 US Open

During the final round of the 1966 US Open at Olympic Club, Arnold Palmer expressed frustration towards his playing partner Billy Casper after Casper stopped speaking to him. At one point, Palmer was seven shots ahead and seemed poised to win his second US Open title. However, Casper rallied in the final nine holes, while Palmer struggled with five bogeys, leading to yet another playoff for Palmer. Casper's shift in focus displeased Palmer, who had initially been supportive of Casper against Jack Nicklaus, their mutual competitor.

• 5:30 PMYahoo Sports — Why Arnold Palmer was mad with eventual champion Billy Casper during the final round of the 1966 US Open