Yahoo Sports reports: Top seed Elena Rybakina came through a tough battle with defending Queen's champion Tatjana Maria on Friday, overcoming inconsistency and mistakes to beat the German 6-7 (4-7), 7-5, 6-0. Maria had beaten her in last year’s quarter-finals but this time Rybakina set up a last-eight meeting with Katie Boulter, who beat Romanian Jaqueline Cristian 6-1, 6-3.