Novak Djokovic tops Daniil Medvedev to win U.S. Open for historic 24th Grand Slam title

Halfway through a second set that lasted one hour, 44 minutes, a test of tenacity as much as talent amid a U.S. Open final as exhausting as it was exhilarating, Novak Djokovic and Daniil Medvedev engaged each other in a 32-stroke point.

It was among many such elongated exchanges between two men whose styles are nearly mirror images, and Djokovic capitulated by netting a backhand. He fell to his back and stayed down, chest heaving. The crowd roared. Djokovic sat up but remained on the ground for a bit. The crowd roared some more, appreciating the effort, saluting the entertainment.

Using every ounce of his energy and some serve-and-volley guile — an old man with new tricks — Djokovic emerged for a 6-3, 7-6 (5), 6-3 victory over Medvedev at Flushing Meadows to claim a historic 24th Grand Slam title on Sunday night in a match more closely contested than the straight-set score indicated.

"I never imagined that I would be here standing with you talking about 24 Slams. I never thought that would be the reality," said Djokovic, a 36-year-old from Serbia and the tournament's oldest male champion in the Open era, which dates to 1968. "But the last couple of years, I felt I have a chance, I have a shot for history, and why not grab it if it's presented?"

WATCH | Djokovic defeats Medvedev in U.S. Open final:

He moved one major singles title ahead of Serena Williams and is the first player to win 24 in the Open era. Margaret Court also collected a total of 24, but 13 of those came before professionals were admitted to the Slam events.

There were snapshots, particularly in the miniseries of a second set, when it appeared Djokovic was faltering. After some of the most grueling points — and there were many — he would lean over with hands on knees or use his racket for support or pause to stretch his legs. And then, suddenly, he would snap to.

"That's Novak," Medvedev said. "No matter what, he can be there."

There was an inescapable sense, on the part of the participants and any observer, that whichever man succumbed in the second set would be unable to overcome it.

"I don't think I have ever played a longer set in my life," Djokovic said.

Medvedev's take on that segment of the match?

"Oh, regrets, for sure," he said. "Should have won it."

Medvedev came within a single point of taking that set while returning at 6-5. Djokovic rushed the net behind his serve, and while Medvedev had an opening for a backhand passing shot by hitting it down the line, he instead went cross-court, and Djokovic had it covered. In the tiebreaker, Medvedev led 5-4 before Djokovic grabbed the next three points.

One key adjustment: When Djokovic was looking more bedraggled, he turned to serve-and-volleying, not his usual sort of tactic. He won 20 of 22 points he played that way, and 37 of 44 overall on the points when he went to the net, some with spectacular volleys or half-volleys at angles a pool shark would appreciate.