Rafael Nadal's uncle and coach Toni has played down the significance of his nephew's US Open victory, calling it "nothing special".

Nadal US Open triumph nothing special - Toni

Nadal US Open triumph nothing special - Toni

The Spaniard took full advantage of a US Open field devoid of the likes of Andy Murray, Novak Djokovic, Stan Wawrinka, Milos Raonic and Kei Nishikori, making it all the way to the semi-finals before facing a top-50 ranked opponent.

His semi-final win over Juan Martin del Potro was arguably tougher than his final encounter with Kevin Anderson, seeing off the South African in straight sets to win his 16th Grand Slam title.

His uncle, who is stepping down from Nadal's coaching team this year, says the lack of star power at Flushing Meadows means the world No.1 was expected to win and therefore the triumph was not as special as previous Grand Slam triumphs.

"For me it's nothing special [to finish with a victory]," Toni Nadal said. "No different than the other times when he won tournament of the grand slam.

"This tournament was different because we play against [Alexandr] Dolgopolov, [Andrey] Rublev, good players but not the top.

"I don't want to say anything bad for our opponents but this time some [got injured] before playing - Murray, Djokovic, Wawrinka, Nishikori, Raonic. And then Federer lose. But I think Rafael has played well and was the best of the people who has played."