At Winged Foot Golf Club, Phil Mickelson was zoning in on his third straight major title, but when it's Sunday at the U.S. Open, anything can happen.

The United States Golf Association (USGA) conducts many of golf's most prestigious championships, highlighted by the U.S. Open, the U.S. Women's Open and the world’s premier amateur championships. Based in Liberty Corner, N.J., the USGA governs the game in the U.S., its territories and Mexico.

To learn more about the USGA, visit http://www.usga.org.

For the full library of historic footage and films from golf's iconic moments and figures, get the FREE USGA streaming app for Apple TV and Roku.

Stream the USGA on Apple TV: https://apps.apple.com/us/app/usga/id1344919935

Stream the USGA on Roku: https://channelstore.roku.com/details/277489/usga