What to know

• Novak Djokovic grinded through physical and internal ailments, made one mistake after another and could not find what it took to beat a feisty, younger opponent who was not intimidated under the lights against tennis' most decorated player. The 39-year-old is...S1S2
• The 2026 US Open defeat ended Novak Djokovic's streak of 78 consecutive opening-round wins at a Grand Slam.S3
• World #49 Mariano Navone entered his match against Novak Djokovic on Arthur Ashe stadium in the first round of the 2026 US Open as a relative unknown for casual tennis fans. The 25-year-old had only claimed one ATP title in his career, and had never advanced b...S4