Britain''s Emma Raducanu has been beaten 6-4 6-3 by Russia''s Anna Kalinskaya in the semi-finals of the Washington Open.

Ben Shelton defeated fellow American Frances Tiafoe 7-6(2), 6-4 in the DC Open quarterfinals, reaching the semifinals of a tournament for the 5th time this season.

Emma Raducanu was bundled out of the Washington Open in a 6-4 6-3 semi-final defeat to Anna Kalinskaya. The British number one matched the Russian early, using her superior serve to pick up five aces.