The third day of the U.S. Open is in the books, and Kim Clijsters' career is likely over. She lost to Laura Robson, 7-6 (4), 7-6 (5), in the second round. The three-time U.S. Open winner said that it was the perfect place to retire, though she would have preferred to advance to face Li Na rather than the 18-year-old Robson.

Elsewhere on the women's bracket, No. 3 seed Maria Sharapova took less than an hour to defeat Spain's Lourdes Dominguez Lino, 6-0, 6-1, and No. 1 seed Victoria Azarenka got an easy 6-2, 6-2 win over Belgium's Kirsten Flipkens.

On the men's side, Olympic gold medal winner Andy Murray won his second-round match against Croatian Ivan Dodig, 6-2, 6-1, 6-3. American John Isner, the No. 9 seed, beat Xavier Malisse, 6-3, 7-6 (5), 5-7 and 7-6 (9), in his first match of the tournament.

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