NEW YORK—If there were any boos directed Jannik Sinner’s way at the U.S. Open, they were imperceptible amid the polite applause from the sparse Arthur Ashe Stadium crowd when he was introduced Tuesday before the No. 1-ranked man’s first match since his doping case emerged a week ago.
After a sloppy and slow opening set, Sinner pulled away for a 2–6, 6–2, 6–1, 6–2 victory over Mackie McDonald to reach the second round at Flushing Meadows.
