Jack Draper vomited on the court during his US Open semi-final against Jannik Sinner amid a gruelling encounter. The Briton even got a towel and cleaned it up, which prompted the chair umpire to intervene and ask if he needed some time to get himself back together. But Draper was keen to carry on midway through the second set, with the game already nudging into over two hours. While it was courageous of the 22-year-old to try and force himself to play through his stomach troubles, he might have been better off taking the short break. That is because Sinner showed no remorse and went on to clai…