(FILE PHOTO) Rafael Nadal,Grand Slam champion, will retire from tennis at the end of this season. MADRID, SPAIN - MAY 06: Rafael Nadal of Spain waves goodbye to the crowd after defeat in his quarterfinal match against Carlos Alcaraz of Spain during day nine of the Mutua Madrid Open at La Caja Magica on May 06, 2022 in Madrid, Spain. (Photo by Clive Brunskill/Getty Images)