Top-ranked Jannick Sinner, a 23-year-old from Italy, who was exonerated in a doping case less than a week before play began in New York, was the better player throughout and finished off a 7-5, 7-6 (3), 6-2 victory over Draper to reach his first title match at Flushing Meadows — and second at a Grand Slam tournament his year.