FILE - In this Aug. 28, 2010, file photo, David Chung reacts to sinking a putt during the U.S. Amateur golf tournament at Chambers Bay in University Place, Wash. In the background are concrete pilings and other remnants from the site's history a decade ago as an old sand and gravel pit. The course, which opened in 2007, will become the youngest golf course to host the U.S. Open since Hazeltine in 1970 when the tournament takes place later this month. (AP Photo/Ted S. Warren, file)