Bertens met winst op Kvitova naar kwartfinale – Wel.nl
Rivalry record: Petra Kvitova vs Kiki Bertens
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Rivalry record: Petra Kvitova vs Kiki Bertens
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Rivalry record: Petra Kvitova vs Kiki Bertens
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Rivalry record: Petra Kvitova vs Kiki Bertens
/s3/static.nrc.nl/bvhw/files/2018/07/data33720720-71b9f3.jpg "De ups en downs van de samenwerking tussen Bertens en coach Sluiter - NRC")