Tsvetana Pironkova of Bulgaria plays a shot to Petra Kvitova of the Czech Republic during their women's singles match at the Sydney International tennis tournament in Sydney, Thursday, Jan. 9, 2014.(AP Photo/Rick Rycroft)

Australia Tennis Sydney International

Tsvetana Pironkova of Bulgaria plays a shot to Petra Kvitova of the Czech Republic during their women's singles match at the Sydney International tennis tournament in Sydney, Thursday, Jan. 9, 2014.(AP Photo/Rick Rycroft)

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