Jack Draper's US Open run ends in heartbreak as he loses to Jannik Sinner in the semi-finals.** The 22-year-old British tennis star, who reached the last four at Flushing Meadows for the first time, battled hard in the first two sets before losing in straight sets 7-5, 7-6, 6-2. Draper was sick on court four times during the hot and humid match, while Sinner needed treatment for a sore wrist. Sinner, who previously won the Australian Open earlier this year, will face either Taylor Fritz or Frances Tiafoe in Sunday's final. **Draper, the British men's number one, had announced himself as the new star of British tennis, stepping up as Andy Murray retired from the sport this summer.