Jannik Sinner came to Flushing Meadows under the cloud of not one but two failed drug tests in March. He leaves as U.S. Open champion.

The world’s top-ranked player looked the part, beating American Taylor Fritz, 6-3, 6-4, 7-5, in Sunday’s final at a partisan Arthur Ashe Stadium.

The star-studded crowd — including Taylor Swift, Travis Kelce, Patrick Mahomes, Matthew McConaughey, Usher and Elon Musk — was urging on Fritz, looking for a slice of history.

This has been all-too unfamiliar ground for U.S. men.

Sunday marked the first time an American man had made a Grand Slam final since 2009 — and first here in Flushing since 2006. Fritz had been hoping for more.