NEW YORK (AP) -- Fifth-seeded Li Na of China advanced to the third round of the U.S. Open with a 6-2, 6-2 victory Wednesday over Sofia Arvidsson of Sweden.
Li, the 2011 French Open titlist, hit 29 winners to only four for her 100th-ranked opponent.
Li is in the third round of the U.S. Open for the fifth time and could face Britain's Laura Robson, who beat her in the third round last year at Flushing Meadows.
Robson, the 30th-seed, had a match against Caroline Garcia scheduled later Wednesday.
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