MIAMI: World number one Serena Williams breezed into the quarterfinals of the WTA and ATP Miami Masters on Monday (Tuesday in Manila) while Russian fourth seed Maria Sharapova battled through three sets to advance.
Top-seeded defending champion Williams routed US qualifier Coco Vandeweghe 6-3, 6-1 in 78 minutes to book a last-eight matchup with German fifth seed Angelique Kerber.