\n<\/p>\n
Wimbledon champion Elena Rybakina is through to the Miami Open quarter-finals after beating Elise Mertens in straight sets.<\/span><\/p>\n The Kazakh 10th seed defeated her Belgian opponent 6-4 6-3.<\/span><\/p>\n<\/div>\n Rybakina is now unbeaten in 11 matches, while victory in Miami would see her achieve the rare ‘Sunshine Double’ following her <\/span>title win at Indian Wells<\/span><\/a> earlier in March.<\/span><\/p>\n She will play Italy’s Martina Trevisan in the last eight.<\/span><\/p>\n It will mark a first WTA 1000 quarter-final for 25th seed Trevisan after she beat Latvia’s former French Open champion Jelena Ostapenko 6-3 6-3.<\/span><\/p>\n Elsewhere, American world number three Jessica Pegula defeated Poland’s Magda Linette 6-1 7-5 to set up a quarter-final clash with Russian Anastasia Potapova.<\/span><\/p>\n Meanwhile, Stefanos Tsitsipas progressed to the last 16 of the men’s singles with a 6-3 4-6 6-4 victory over Chilean qualifier Cristian Garin in what was his first appearance on court in Miami.<\/span><\/p>\n The Greek received a first-round bye before second-round opponent Richard Gasquet withdrew through injury.<\/span><\/p>\n Second seed Tsitsipas will face Karen Khachanov next, after the Russian breezed past Czech Jiri Lehecka 6-2 6-4.<\/span><\/p>\n