LONDON, ENGLAND - JULY 12: Novak Djokovic of Serbia in action during the Men's Singles Semi Final against Roberto Bautista Agut of Spain (not pictured) at The Wimbledon Lawn Tennis Championship at the All England Lawn and Tennis Club at Wimbledon on July 12, 2019 in London, England. (Photo by Simon Bruty/Anychance/Getty Images)