who was in the 2010 us open?
dustin johnson, graeme mcdowell, tiger woods, ernie els, gregory havret, phil mickelson, alex cejka, tim clark, ryo ishikawa, martin kaymer, davis love iii, sean o'hair
of these, who was from the winning country?
dustin johnson, tiger woods, phil mickelson, davis love iii, sean o'hair
who was the overall winner?
dustin johnson