Team World's Frances Tiafoe, front, and Ben Shelton return the ball during their doubles match against Team Europe's Carlos Alcaraz and Casper Ruud on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team Europe's Carlos Alcaraz tosses the ball in the air to serve as he and Casper Ruud play during their doubles match against Team World's Frances Tiafoe and Ben Shelton on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Tennis great Roger Federer follows the game during the doubles match between Team Europe's Carlos Alcaraz and Casper Ruud and Team World's Frances Tiafoe and Ben Shelton on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team Europe's Daniil Medvedev returns to team World's Ben Shelton on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team World's Ben Shelton, left, shakes hands with Team Europe's Daniil Medvedev after their singles tennis match on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team World's Ben Shelton in action against Team Europe's Daniil Medvedev on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team World's Frances Tiafoe reacts after his singles tennis match against Team Europe's Alexander Zverev on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)

Team Europe's Alexander Zverev celebrates after winning against Team World's Frances Tiafoe on the third day of the Laver Cup tennis tournament, at the Uber arena in Berlin, Germany, Sunday, Sept. 22, 2024. (AP Photo/Ebrahim Noroozi)