Who broke Karlović's record for career aces in July 1, 2022?
Roger Federer
Rafael Nadal
John Isner
Andy Murray
Answer
John Isner, an American professional tennis player, surpassed Ivo Karlović's record of 13,728 career aces on July 1, 2022. Isner achieved this milestone during a first-round match at the Wimbledon Championships against Enzo Couacaud of France.