Things look to be setting up nicely for No. 1 seed Serena Williams to battle No. 2 seed Victoria Azarenka for the US Open title. Not so fast. They'll have to get through two highly motivated opponents in Li Na and Flavia Pennetta first.
Sloane Stephens, the final American, is out, and the women's semifinals are set. In an already-wacky Wimbledon, the semis not surprisingly are comprised of three players nobody would have expected and one many may have never heard of.