Osaka battles, Kvitova cruises to Brisbane semis
 

Naomi Osaka battled for two hours while Petra Kvitova cruised to victory on Friday as both booked spots in the semi-finals of the season-opening Brisbane International. Osaka’s form slipped after the first set but the world number four eventually saw off sixth seed Kiki Bertens 6-3, 3-6, 6-3 at the Pat Rafter Arena. Bertens was …

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