Luke Donald and Lee Westwood both struggled on the opening day of the 111th US Open at Congressional.
World number one Donald shot a three-over 74, while second-ranked Westwood took 75 to trail clubhouse leader YE Yang by six strokes.
The English duo played with world number three Martin Kaymer, who hit 74.
Defending champion Graeme McDowell made a promising start with a one-under 70.
South Africa’s Open champion Louis Oosthuizen was two under with American Ryan Palmer, while 2009 Open winner Stewart Cink ended one under alongside fellow Americans Davis Love and Chez Reavie and Swedes Johan Edfors and Henrik Stenson.
Three-time major champion Padraig Harrington of Ireland carded a level-par 71.
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