Djokovic suffers shock first-round loss at US Open

Novak Djokovic was eliminated in the first round of the US Open by unseeded Mariano Navone in a five-set match lasting over four and a half hours. The 39-year-old, who holds a record 24 Grand Slam titles, struggled with physical issues, vomiting and cramping, and made 70 unforced errors. It was his earliest exit from a major since the 2006 Australian Open.

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The match lasted four hours and 36 minutes, the longest opening-round contest of Djokovic's career. He lost the first set after building early leads of 3-0 and 4-1, the first time he dropped an opening set in the US Open's first round since 2006. Navone, unseeded, won his first ATP singles title earlier this year.

Djokovic's physical struggles included vomiting, cramping, and back and shoulder pain. He required a medical timeout between the fourth and fifth sets and took medication from a doctor. His wife Jelena watched with concern. The defeat came 21 years after his US Open debut, raising questions about his future