By Julian Linden
His 6-4 5-7 6-4 6-2 victory over Novak Djokovic in Monday's rain-interrupted final at Flushing Meadows ensured the Spaniard joined the pantheon of tennis greats and resolved beyond any reasonable doubt just who is the best player in the world today.
But the argument over who is the greatest of all time has once again been sparked and could rage for years.
"For me, it's a dream to have the career grand slam," Nadal said. "It is an unbelievable feeling because I worked all my life in difficult moments to be here."
With eight grand slams before the tournament began, the lefthanded Nadal was already one of the game's elite, but his win on Monday elevated him to a whole new level.
He overcame the distraction of a two-hour relay delay and losing his first set of the tournament to defeat Djokovic after three hours and 43 minutes of unrelenting tension at Arthur Ashe Stadium.
Djokovic, who had beaten Federer in an exhausting five-set semi-final on Saturday, expelled any doubts about his fighting qualities with a fearless performance, fending off an astonishing 20 break points during the course of the match, but the pressure eventually wore him down.
"I cannot hide the disappointment. I'm not gonna cry or complain about that. It's just the way it is," Djokovic said.
"I wanted that trophy, and I know I gave my maximum to get it even tonight, but tomorrow I will wake up as a new man."
After losing the second set on a sloppy service game, Nadal ran away with the last two -- clinching the victory when Djokovic hit a forehand wide -- and collapsed on court as the enormity of his achievement sank in.
"For the first time in my career I played a very, very good match in this tournament," Nadal said.
"I played my best match in the U.S. Open at the most important moment."
At 24, he was the third youngest to achieve the feat and his best may be still to come.
He is the first man since Laver in 1969 to win the French Open, Wimbledon and U.S. Open in the same year and he now has the chance to hold all four concurrently if he can add the Australian Open in January.
The U.S. Open, played on hardcourts, had always been Nadal's biggest hurdle because of the wear and tear it puts on his aching joints. Federer had won five times but has come up short in each of the last two years and at 29, his stranglehold on the event appears to be slipping.
Nadal arrived in New York fresher than ever and armed with a new and improved serve that enabled him to sail through his opening matches without fuss.
"Well, life changes sometimes. Ten months ago, (it) seemed like I was never gonna be the same. Now (it) seems I gonna be one of the greatest," Nadal said.
"I don't think it was that bad in that moment and not that good in this moment. It's always in the middle, no?
Djokovic has always been at his best on hardcourts. He made the final at Flushing Meadows in 2007, losing to Federer, then won the Australian Open the following season.
He fought off two match points to beat Federer in the semi-finals on Saturday and got a lucky break when rain washed out Sunday's final, giving him an extra day to rest.
Mother Nature helped him again on Monday when the final was halted as a thunderstorm arrived midway through the second set, but it was never going to be enough against a man with destiny in his sights.
"He's so mentally strong and dedicated to this sport. He has all the capabilities, everything he needs, in order to be the biggest ever," Djokovic said of Nadal.
"He has the game now for each surface, and he has won each major. He has proven to the world that he's the best in this moment, so there is no question about it."
(Editing by Greg Stutchbury)