Ailing Novak Djokovic falls in US Open first round for earliest grand slam exit in 20 years
Mariano Navone wins 7-6 (7-5), 5-7, 4-6, 6-2, 6-1 to end Serb’s hopes

TL;DR
- Novak Djokovic was defeated by Mariano Navone in the first round of the US Open.
- Djokovic suffered from vomiting and cramps during the match, attributing his struggles to a recurring health condition exacerbated by heat and humidity.
- This loss is Djokovic's earliest grand slam exit in 20 years, with his last first-round major defeat occurring at the 2006 Australian Open.
- Despite his physical challenges, Djokovic managed to win the first three sets before Navone took control.
- Mariano Navone, a fan of Djokovic, played an impressive match, chasing down every ball and maintaining strong groundstrokes.