FILE - Juan Martin del Potro, of Argentina, celebrates after defeating John Isner during the quarterfinals of the U.S. Open tennis tournament, Tuesday, Sept. 4, 2018, in New York. Juan Martín del Potro tells The Associated Press he would love to play at the U.S. Open this year if his body will allow it. (AP Photo/Carolyn Kaster, File) FILE PHOTO

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