Ostapenko and Kvitova: A refreshing rivalry renewed in 2018
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Jelena Ostapenko and Petra Kvitova (seen here at the China Open in 2017) were common rivals in 2016, with four matches between them. (Getty Images)
Grand Slam champions Petra Kvitova and Jelena Ostapenko battled four times in 2016, winning two matches apiece. The power players rekindled their rivalry in the quarterfinals of the 2018 St. Petersburg Ladies Trophy.