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NEW YORK - China's Li Na became the highest seed to fall at this year's US Open when she suffered a shock 2-6 6-4 6-2 defeat to hard-hitting Ukrainian Kateryna Bondarenko on Tuesday.
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  Li Na of China hits a return to Kateryna Bondarenko of Ukraine during the US Open tennis tournament in New York, August 31, 2010. [Agencies] | 
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Both Li and Bondarenko reached the quarter-finals in New York in 2009 but Li looked on course for a straightforward win when she broke serve twice to winning the first set.
But Bondarenko, who has slipped down the rankings after a three-month absence with knee trouble, levelled the match and then roared through the decider to reach round two.