Defending champion Annika Beck upset by Barbora Stefkova in Quebec City
In other matches, Canadian wild card Francoise Abanda defeated sixth-seeded Mona Barthel.
Sep 14, 2016
Defending champion Kerber comes from behind to beat Beck at Porsche Grand Prix
In other action, Pliskova fired 16 aces to upset eighth-seeded Czech compatriot Safarova, 7-6 (4), 4-6, 7-5.
Apr 20, 2016