Grigor Dimitrov has concluded his participation in the US Open Tennis Championship due to an injury that forced him to withdraw from his quarterfinal match against Frances Tiafoe on the Arthur Ashe Center Court at the Flushing Meadows complex in New York. Tiafoe was leading 6:3, 6:7(5), 6:3, and had a 4:1 advantage in the fourth set when Dimitrov decided to retire from the match.
Despite receiving medical attenti
