Maria Sharapova and Petra Kvitova were both eliminated in the third round of the Rogers Cup.

Fourth seed Sharapova was beaten in three sets by Spain’s Carla Suarez Navarro, 6-2 4-6 6-2 in a match lasting two hours and 22 minutes late Thursday.

Kvitova, the world number four who this year won her second Wimbledon title, was seeded second in Montreal but was dumped out 6-4 1-6 6-2 by Russian Ekaterina Makarova in an even longer match clocking in at almost two hours and 40 minutes.

There were no such issues for top seed Serena Williams, who saw off 15th-seeded Czech Lucie Safarova 7-5 6-4.

Williams’s sister Venus also advanced, the 34-year-old taking the notable scalp of sixth seed Angelique Kerber in another long battle that finished 6-3 3-6 6-4 to set up a clash with Suarez Navarro.

Another seed fell to an American opponent as rising star Coco Vandeweghe upset Jelena Janko-vic 7-6 2-6 7-5.

In other matches in Montreal, Victoria Azarenka beat Britain’s Heather Watson 6-2 6-4 while Caroline Wozniacki brushed aside qualifier Shelby Rogers 6-1 6-0.

Watson was broken three times as she lost the first set 6-2, serving four double faults and winning less than half of the points on her first serve.

She came from a break down in the second to level at 3-3 – the first time she had ever taken three games in a set against Azarenka – but the Belorusian immediately broke again to lead 4-3 and closed the match out 6-2 6-4, finishing with an ace.

Quarter-final: S. Williams bt Wozniacki 4-6 7-5 7-5.

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