Rafael Nadal of Spain plays a forehand return to Marcos Giron of the U.S. during their first round match at the Australian Open tennis championships in Melbourne, Australia, Monday, Jan. 17, 2022. (AP Photo/Hamish Blair)

Rafael Nadal of Spain walks to the back of the court during his first round match against Marcos Giron of the U.S. at the Australian Open tennis championships in Melbourne, Australia, Monday, Jan. 17, 2022. (AP Photo/Simon Baker)