Exciting Upsets and Dominant Performances Mark Day One at U.S. Open

The first day of the U.S. Open at Flushing Meadows saw thrilling matches and remarkable performances. Highlights included Lorenzo Musetti's victory over Reilly Opelka, Madison Keys advancing to the second round, and Andrey Rublev defeating Thiago Seyboth Wild. Defending champion Coco Gauff also secured a spot in the next round.

The inaugural day of the U.S. Open at Flushing Meadows proved to be a thrilling mix of upsets and dominant performances. Italian 18th seed Lorenzo Musetti delivered a hard-fought victory over American Reilly Opelka, clinching the match 7-6(3) 1-6 6-1 7-5 after nearly three hours on the court.

Ninth seed Grigor Dimitrov from Bulgaria breezed into the second round, securing a 6-3 6-4 6-2 win over French qualifier Kyrian Jacquet. Meanwhile, American Madison Keys, a finalist in 2017, overpowered Czech Katerina Siniakova with a 6-4 6-1 victory to move forward in the tournament.

Defending champion Coco Gauff showcased her dominance, cruising through her first-round match against France's Varvara Gracheva with a decisive 6-2 6-0 triumph. Gauff is set to face Germany's Tatjana Maria next, following Maria's win over Solana Sierra of Argentina.

(With inputs from agencies.)