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Kiki Bertens dispatched two-time Stuttgart champion Angelique Kerber in convincing fashion, 6-3, 6-4, in Friday's quarterfinal. Bertens took control right from the beginning and never let up, overpowering the German champion.

Bertens' serve was the difference maker in this match. She won a staggering 76% of points on her second serve, to go along with five aces.

Bertens now owns a 3-2 head to head advantage over Kerber. She will face third seed Petra Kvitova in the semifinal.