Liam Broady of Britain plays a forehand return during his first round match against Nick Kyrgios of Australia at the Australian Open tennis championships in Melbourne, Australia, Tuesday, Jan. 18, 2022. (AP
Australia's Mark Philippoussis (L) practices watched by unidentified coach before his men's singles final match against Switzerland's Roger Federer at the Wimbledon Tennis Championships in London, July 6, 2003. REUTERS/Jeff J Mitchell