Fighting through a knee injury, Andrea Petkovic was able to barely get by 2010 Australian Open semifinalist Zheng Jie 3-6 6-3 6-3. Zheng had Petkovic on the hook 6-3 3-0 before Andrea mounted her comeback. How close was this match? Each player had 23 winners and 3 double faults. Andrea had 30 unforced errors while Jie had 31. Whether Andrea can keep winning here depends on her knee. She says it doesn’t hurt all the time. Rather, it pops up with a shooting pain that will affect her for several games.
Serena Williams followed her 6-1 6-1 demolition of Bojana Jovanovski in the first round with an even more emphatic thumping of Michaella Krajicek in the second round, 6-0 6-1. There’s no doubt that what Serena is doing has drawn the attention of other players who believe they can win the tournament. However, with all due respect to Krajicek, the real litmus test for Serena might come in the next round, if Victoria Azarenka can get by Gisela Dulko. Should Vika win, and that’s not a certainty against a very good player in Gisela, she has an opportunity to put the brakes on the Serena Express. Should Gisela get through, I don’t know if she matches up as well with Serena. Gisela would need Serena’s play to diminish significantly to have a chance. Maybe Vika does, too.