What an amazing first week of tennis here at the #USOpen! And today has certainly been no exception! Who has your vote for the #EmiratesAce of the day, @mariasharapova, Phillip Kohlschreiber, or @djokernole? Comment on your choice below and include the #EmiratesAce hashtag for a chance to win 2 tickets to an upcoming match! _ #USOpen50 #tennis #protennis #nyc #usta #builtforglory #mariasharapova #novakdjokovic #kohlschreiber