Serena powers to second win in Istanbul, Jankovic shines
By Ece Toksabay
ISTANBUL (Reuters) - World number one Serena Williams beat Agnieszka Radwanska for the eighth time in eight matches to move ominously towards the semi-finals of the WTA Championships on Wednesday.
The American was again too strong for the Pole in a 6-2 6-4 victory to stay in charge of Red Group with one more round-robin match to come against Petra Kvitova, another player to whom she has never suffered defeat.
"Radwanska definitely played pretty well. Am I happy? I guess. I'm happy to still be alive in the tournament. But, you know, I can always look to improve on some things," Williams told reporters after her 75th match win of a dominant year.
"My serve wasn't as good today as it was yesterday, but, you know, you can't expect it to be great every day."
"It wasn't easy.' she added. "It's the end of the year and I'm a little tired, so I really had to fight in that second set to stay up mentally."
Radwanska, whose only set against the 32-year-old Williams came in the 2012 Wimbledon final of, is unlikely to survive the group after two defeats so far at the season-ender.
Earlier in White Group Serbia's Jelena Jankovic beat second seed Victoria Azarenka 6-4 6-3, aided by 40 unforced errors from her erratic opponent.
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