Novak Djokovic looked to have a manageable path to a record-breaking 25th major title after world No. 1 Jannik Sinner’s historic collapse at Roland-Garros, also known as the French Open , but 19-year-old Brazilian João Fonseca had other plans.  Winner Joao Fonseca of Brazil greets Novak Djokovic of Serbia after their men's singles match on day 6 of the French Open at Court Philippe-Chatrier in Paris on May 29, 2026. (Dimitar Dilkoff/AFP) It was an incredible five-set comeback victory over Djokovic, which may be remembered as one of the defining changing-of-the-guard moments in modern tennis . The 19-year-old Brazilian rallied from two sets down to defeat the 24-time Grand Slam champion 4-6, 4-6, 6-3, 7-5, 7-5. The loss was especially shocking because Djokovic had rarely squandered two-set leads in Grand Slam play, making Fonseca’s victory one of the biggest upsets of the season, and the earliest round exit at Roland-Garros for Djokovic since 2009.…