Defending US Open champion Wyndham Clark says that this week's greens at Pinehurst No.2 "already are borderline" ahead of what is set to be a stern test of golf at the USA's 124th national open.
Clark won his maiden Major title at LACC last year, where he pipped Rory McIlroy by a single stroke. He won his third PGA Tour title at the AT&T Pebble Beach Pro-Am earlier this year and moved up to a career-high of 3rd in the world.
