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By Mark Lamport-Stokes
UNIVERSITY PLACE, Washington (Reuters) - Gentle breezes, dazzling sunshine and birdie opportunities in more receptive conditions greeted the early starters on Sunday at Chambers Bay where the U.S. Open was poised for a gripping finish.
Four players were tied for the overnight lead -- Americans Jordan Spieth and Dustin Johnson, South African Branden Grace and Australian Jason Day – and they were preparing for a mid-afternoon teeoff on the challenging links-style layout.