Photos Of Celebrities At Round 1 Matches
John Mulaney and Olivia Munn at the 2025 US Open, Tuesday, Aug. 26, 2025 in Flushing, NY. (Michael Mooney/USTA) Michael Mooney/USTA The 2025 U.S. Open — the fourth and final event in Grand Slam of Tennis this year — began full-swing on Sunday with Round 1 at the Billie Jean King National Tennis Center in…