Members of the maintenance staff work to squeegee standing water off the 11th fairway during a practice round at the 2013 U.S. Open at Merion Golf Club in Ardmore, Pa. on Monday, June 10, 2013.

Members of the maintenance staff work to squeegee standing water off the 11th fairway during a practice round at the 2013 U.S. Open at Merion Golf Club in Ardmore, Pa. on Monday, June 10, 2013.