US
World number eight overcame Frenchman Luca Van Assche 4-6, 6-3, 6-4, firing 15 aces
Russian defeats Felix Auger-Aliassime 4-6, 7-5, 7-5 to secure his second title of the year
He came into the tournament on a four-match losing streak
Home favourite beaten by seventh-seed 4-6, 6-3, 6-2 in quarter-finals
18-year-old came through 6-4, 7-6 (8/6) against Russian top seed to reach his maiden ATP semi-final
26-year-old Russian will be joined by Grand Slam semi-finalists Tiafoe and Khachanov
World number one beat fifth seed 5-7, 7-6 (7/3), 7-5 to book final with unseeded Dimitrov
Third seed defeats Australian 2-6, 6-4, 6-1, 6-2 in four sets
World number seven defeats Spaniard 5-7, 6-1, 7-6 (9/7) to move into second round
World number seven beats 53rd-ranked rival 7-6, 6-3 to reach grass-court event’s quarter-finals