US Open: Rafael Nadal not sure when he will return after loss to Frances Tiafoe

After he lost in the fourth round of the US Open, Nadal doesn't know when he will play again.

I have to return. "I don't know when I'm going to come back, I need to fix things, life, then I don't know what's going to happen."

I'm going to make sure I'm prepared. I will be there when I'm ready to compete again.

The Laver Cup will take place in London from 23 to 25 September.

Nadal had not lost a Grand Slam match this year.

Since pulling out of the Wimbledon semi-finals with an abdominal injury, he's only played two tournaments.

After losing to Borna Coric in Cincinnati, Nadal went to New York and lost his first two matches.

The second seed was defeated by France's Richard Gasquet in front of a loud crowd in New York.

The difference is that I played a bad match and he played a good match.

I couldn't hold a high level of tennis for a while. I was not fast enough. I couldn't push him back because he was taking the ball too early.

Tennis is a game of positions. You need to be fast and young. I'm not in that moment anymore.

There will be a first-time Grand Slam winner in the men's singles as a result of Nadal's loss.