Li Na vs. Jelena Jankovic
These 2 good friends will battle for a sure pass to the semi-finals in Istanbul. Jankovic surprised everybody by defeating Azarenka handily, but it was more due to Azarenka's errors than Jankovic's winners. Still, she scrambled well enough to trouble Azarenka to go for her shots. Will she cause the same troubles to Li Na? Li played a good match even though she had a bit of trouble closing out the match against Errani. With Azarenka's suspect form, Li looks good to emerge as the top player in her group.
Pick: Li in 3 sets
Agnieszka Radwanska vs. Angelique Kerber
Agnieszka's Istanbul campaign is as good as over. Will she give Kerber a charity win? Or will she even step on court? Radwanska, Kerber and Wozniacki are good friends, so I won''t be surprised if 1) Radwanska withdraws and lets Wozniacki play, 2) Radwanska loses this match to give Kerber more chances of going into the semi-finals. If these 2 players give their best, I believe Radwanska has the steady game. But with 2 losses so far, I doubt Aga will be motivated in this match.
Pick: Kerber in 2 sets
Serena Williams vs. Petra Kvitova
If there is a player who can match Serena with her power and serve, it will be Petra Kvitova. When she's firing from all cylinders, she's almost impossible to stop. However, the mental strength of Kvitova is not as tough as Serena, so I expect the Czech to crumble at key points of the match. It will be a good match featuring huge serves and hitting, but Serena will probably come out on top.
Pick: Serena in 2 tight sets