Prior to playing at the Rogers Cup in Montreal, Nadal had been reluctant to say whether he would play in the final Masters 1000 event before the US Open.
In 2018, Nadal won in Canada then promptly pulled out of Cincinnati.
And on Sunday, he was once again victorious, as he beat Daniil Medvedev in convincing fashion 6-3 6-0.
Speaking immediately after the match, Nadal said in an on-court interview he would speak to his team about whether to play in Cincinnati.
But he was asked again in his post-match press conference and Nadal told reporters he would not be playing in Ohio.
Nadal will now begin his preparations for the US Open, which begins on August 26 and he will arrive in New York in confident mood after producing what he described as his best performance of the week to defeat Medvedev.
“He played a great game, some very long rallies. For me, personally, it was important to start the match in good shape,” Nadal said.
“He came to that match playing so well, playing a lot of matches [in recent] weeks. For me, it was a different story. I only played three matches on hard before this one.
“I think I played a good first game, too. He had a break point. I played well. I saved that game. After that I think I played a solid match, my best match of the week so far without a doubt.”
Rafael Nadal will not be playing in Cincinnati (Image: GETTY)
Rafael Nadal has won 35 Masters 1000 titles (Image: GETTY)
ALL-TIME ATP MASTERS 1000 TITLES
Rafael Nadal – 35
Novak Djokovic – 33
Roger Federer – 28
Andre Agassi – 17
Andy Murray – 14