Petra Kvitova, of the Czech Republic. 科維托娃/ 克維托娃, 捷克

Petra Kvitova of the Czech Republic watches her return against Angelique Kerber of Germany during their singles match at the WTA tennis finals in Singapore on Monday, Oct. 26, 2015. (AP Photo/Wong Maye-E)
Photos of the day – October 26, 2015
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