Mariano Navone eliminated Novak Djokovic in the first round of the 2026 US Open, marking a historic upset for the Argentine player.
Djokovic, who struggled with physical exhaustion during the match, admitted his body was failing, leading to speculation about his future in professional tennis.
The defeat marks one of the earliest Grand Slam exits for the former world number one, who had been aiming to extend his record-breaking career.