NEW YORK, NEW YORK - AUGUST 30: Carlos Alcaraz of Spain has a discussion with Stan Wawrinka of Switzerland about which side of the racket handle is up or down before spinning it to decide who serves first during a practice session match before his first round match at USTA Billie Jean King National Tennis Center on August 30, 2026 in New York City. (Photo by Clive Brunskill/Getty Images)