The highest seed to go out today at the U.S. Open was Olympic bronze medal winner Vera Zvonareva, who lost to Tatiana Perebiynis in straight sets. 25th seed Francesca Schiavone was upset by Anne Keothavong, and 26th seed Anabel Medina Garrigues lost to Wimbledon semifinalist Zheng Jie.
Although not a major upset on paper, one of the biggest surprises of the day was the 6-1, 6-2 defeat of Tamira Paszek by Magdalena Rybarikova. It wasn't just the suprise loss, but also the scoreline, that got my attention. In the first round, Rybarikova defeated Gisela Dulko, which also surprised me.
Credit to Perebiynis, who is capable of playing some very good tennis, but I was quite surprised to see Zvonareva make a second round exit.