Argentina's Juan Martin del Potro has ruled out defending his U.S. Open title this year after having wrist surgery, he said on Wednesday. "If all goes well, I'd return after the U.S. Open," said Del Potro, who had an operation on his troublesome right wrist in the U.S. early this month. The U.S. Open starts on Aug. 30. "The tournament is and always will be very special for me, all my life but I don't want to rush things," the rangy 21-year-old world number five said on his return to Buenos Aires from seeing his surgeon in the U.S. Del Potro said he might be able to play in the Paris Open indoor tournament near the end of the season in November. ///I am so good, eh? I can bet that someone thought that he will be playing in FO, but no.