NEW YORK — The 19th Grand Slam title that seemed so inevitable for Rafael Nadal during the first two-plus sets of the U.S. Open final suddenly seemed in doubt as Daniil Medvedev forced it to a fifth.

What had all the makings of a crowning morphed into a real contest thanks to Medvedev, a man a decade younger and appearing in his first major final. Medvedev shifted styles, upped his level and received an unexpected boost from Arthur Ashe Stadium spectators.

Truly tested for the only time in the tournament, the No. 2-seeded Nadal managed to stop Medvedev’s surge and hold off his historic comeback bid, pulling out a 7-5, 6-3, 5-7, 4-6, 6-4 victory in 4 hours, 50 minutes of highlight-worthy action and feature-film-worthy drama on Sunday, collecting his fourth championship at Flushing Meadows.

Nadal is now within one major trophy of Roger Federer’s record for Grand Slam titles won by a man. B

Andreescu wins

NEW YORK — Bianca Andreescu had the U.S. Open trophy in her hands and one thought going through her mind.

Don’t mess it up.

So before Andreescu hoisted the hardware she earned Saturday with her 6-3, 7-5 victory over Serena Williams, she leaned toward a tournament official and asked which side was the front.

“I just wanted to make sure so I didn’t look like an idiot,” Andreescu said.