An ESPN reporter accidentally called tennis pro Coco Gauff by the name “Simone” in an awkward on-air slip-up as gymnastics legend Simone Biles sat nearby at the US Open — causing social media to pounce.

“Simone, this match had it all…” ESPN reporter Katie George told the 21-year-old French Open champ during an interview after she beat Croatia’s Donna Vekic Thursday night.

The sports commentator had just interviewed Biles, who was seated a few rows away at the tournament, when she made the sports world error — sparking backlash online.

Observers on X called the mistake “cringy” and “hilariously awkward.”

“Did that interviewer lady just call Coco Gauff “Simone” or was I hearing things???” one commenter wrote.

“This reporter just called coco guaff “Simone.” Weird,” another fan slammed on X.

“Simone’s got tennis skills?? Wait…” a third observer quipped, as another wrote, “Simone oooops, Coco Gauff” alongside a crying-laughing face.

Gauff moved past the mistake and instead thanked Biles, who is a close friend, for inspiring her comeback, saying, “She helped me pull it out.”

Follow along for The Post’s live coverage of the 2025 US Open

On Thursday night, Gauff shook off tears after a faltered serve in a tough first set — which went to a tiebreaker — to defeat Vekic in two sets and advance to the third round.

In an televised interview with George during the game, Biles sang Gauff’s praises, calling her a person with “grace and humility.”

“It’s such a privilege to watch her on home soil…and watch black girl magic,” Biles told George while seated in the audience at Arthur Ashe Stadium. “She is amazing on and off the court.”

Gauff will now face Poland’s Magdalena Frech Friday in round three.