The vibe. “New York is a very energetic city, which I especially enjoy when I’m on the court because I have a very special connection with the crowd,” Mr. Nadal said. When he’s not playing tennis, he likes to take walks around the city, but mostly during the day, because he has to be up early. “I have no time for parties,” he said.

The food. “You find the best restaurants here,” he said. He likes Greek, Spanish and Asian, particularly Japanese. Mr. Nadal said that he hopes to open an outpost here of Tatel, an upscale Spanish restaurant that has locations in Madrid, Ibiza and Miami. He is one of several partners, along with the singer Enrique Iglesias.

When he travels to New York, he packs light: a computer, phone and his rackets.

“They’re all I need to do my job,” he said. “If there is anything else I need, I can find it here.”

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