WASHINGTON -- WASHINGTON (AP) — Emma Raducanu dominated her first career matchup against Naomi Osaka, winning the showdown at the D.C. Open on Thursday between past U.S. Open champions 6-4, 6-2.

Emma Raducanu takes on Greek wildcard Maria Sakkari in the quarter-finals of the Washington Open today. Raducanu saw off Naomi Osaka in straight sets in the second round, having stunned seventh seed Marta Kostyuk in her opening match.

WASHINGTON — Emma Raducanu handed No. 7 seed Marta Kostyuk a sixth consecutive loss Tuesday, defeating her 7-6 (4), 6-4 at the DC Open to prolong a slide that now has lasted more than two months.

Emma Raducanu is into the semi-finals of the Washington Open after a straight sets win over Maria Sakkari. The British number three secured a 6-4, 7-5 victory in DC to move into the last four. It