James Bryson, a member of the maintenance staff works to squeegee off standing water at the 15th teeing ground during a practice round at the 2013 U.S. Open at Merion Golf Club in Ardmore, Pa. on Monday, June 10, 2013.

James Bryson, a member of the maintenance staff works to squeegee off standing water at the 15th teeing ground during a practice round at the 2013 U.S. Open at Merion Golf Club in Ardmore, Pa. on Monday, June 10, 2013.