LONDON, ENGLAND - JULY 07: Darren Cahill, coach of Jannik Sinner of Italy, is seen in the player's box against Jan-Lennard Struff of Germany during their Gentlemen's Singles quarterfinal match on day three of The Championships Wimbledon 2026 at All England Lawn Tennis and Croquet Club on July 01, 2026 in London, England. (Photo by Matthew Stockman/Getty Images)