First it was James Blake beating Roger Federer, and then it was Elena Dementieva beating Serena Williams, and now we have another big story coming out of Olympic tennis: China's Li Na pulled off a shocking upset, defeating Team USA's Venus Williams, 7-5, 7-5.
Williams, who won the golds in both singles and doubles in 2000, was widely considered a favorite to win gold again this year, but Li put on an inspired performance in front of a home crowd that cheered enthusiastically when the American and defending Wimbledon champ went down to defeat.
The Williams sisters are still alive -- and widely favored -- for the doubles gold. But if the Americans are going to win a singles medal in these Games, it will have to come from James Blake. Who would have suspected that?
