In the first set of their round-robin match at the Sony Ericsson Championships, Jelena Jankovic pretty much ran over Vera Zvonareva. The second set was a different story. It was as if the "I can't let her beat me four times in a row" switch got turned on in Zvonareva's head, and she began to play with ferocious aggression. Zvonareva took that set, and she took the third one, too, as she continued with the aggression and Jankovic appeared a bit weary and out of sorts.
Zvonareva and Jankovic are both into the semifinals. Jankovic will play Venus Williams, against whom she has a 5-3 record. However, Williams is going strong in Doha, and Jankovic looks like she may be fading somewhat.