Sharapova, Kvitova exit as Williams rolls on

<a href="http://cache.images.core.optasports.com/news/tennis/2014/8/8/592647header.jpg" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" src="http://cache.images.core.optasports.com/news/tennis/2014/8/8/592647header.jpg" /></a>Maria Sharapova and Petra Kvitova were among the surprise losers at the Rogers Cup as Serena Williams advanced on Thursday.<br /> <br /> Sharapova, the Russian fourth seed, slumped to a 6-2 4-6 6-2 loss to Spain's Carla Suarez Navarro on the hard courts in Montreal.<br /> <br /> The 14th-seeded Suarez Navarro broke Sharapova's serve nine times – three of those came in the deciding set – in the third-round win.<br /> <br /> Suarez Navarro faces another powerful opponent in the quarter-finals in American Venus Williams, who also claimed a scalp by beating German sixth seed Angelique Kerber 6-3 3-6 6-4.<br /> <br /> Czech second seed Kvitova exited the WTA Premier event after a 6-4 1-6 6-2 defeat to Russian left-hander Ekaterina Makarova.<br /> <br /> On a day of upsets, Makarova's quarter-final opponent Coco Vandeweghe stunned Jelena Jankovic.<br /> <br /> American qualifier Vandeweghe fought to a 7-6 (10-8) 2-6 7-5 win over the Serbian seventh seed.<br /> <br /> As seeds around her were beaten, Serena Williams avoided problems against Czech Lucie Safarova.<br /> <br /> The world number one clinched a 7-5 6-4 victory over the 15th-seeded Safarova.<br /> <br /> Williams will face in-form Danish 11th seed Caroline Wozniacki, who needed just 56 minutes to crush American qualifier Shelby Rogers 6-1 6-0.<br /> <br /> Rogers could win just four points in the second set hammering.<br /> <br /> Belarusian eighth seed Victoria Azarenka was a 6-2 6-4 winner over British qualifier Heather Watson and Polish third seed Agnieszka Radwanska overcame German Sabine Lisicki 6-1 3-6 6-3

Maria Sharapova news Petra Kvitova Rogers Cup Sharapova, Kvitova exit as Williams rolls on

Maria Sharapova and Petra Kvitova were among the surprise losers at the Rogers Cup as Serena Williams advanced on Thursday. Sharapova, the Russian fourth seed, slumped to a 6-2 4-6 6-2 loss to Spain's Carla Suarez Navarro on the hard courts in Montre…

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