Serena Williams reacts to first sip of US Open's signature cocktail after decades of competing on the court

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Serena Williams is back at the U.S. Open. 

But instead of emerging from one of the player's lockers at the Arthur Ashe Stadium's back of house, the six-time Grand Slam winner took in the action from the stands. Williams was on hand over Labor Day weekend as Day 7 of the final Grand Slam took place.

Unfortunately, Williams was at the prestigious tournament on the same day that last year's champion Coco Gauff fell and was knocked out of the tournament. But, since Williams was a spectator instead of a competitor, it gave her the opportunity to try a tennis-themed cocktail that has become a fan favorite.

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Serena Williams attends day 7 of the 2024 US Open Tennis Championships on September 1, 2024 in Flushing, New York City.    (Gotham/GC Images)

"Okay, so I’m at the US Open, and I’m having the famous drink," the 23-time Grand Slam winner began in a video posted to social media. "Everyone’s like, ‘Have you ever had one?’ And I’m like, ‘No,’ because I’ve always been playing."

As the partnership between Grey Goose and the U.S. Open continues this year, attendees have the opportunity to grab a cup of Honey Deuce. The drink is a mix of vodka, lemonade and a raspberry liqueur. The popular cocktail also features a trio of signature melon balls.

US Open Honey Deuce Cocktail on Thursday, August 24, 2023. (Nathan Congleton/NBC via Getty Images)

The cocktail made its debut in 2007, and Grey Goose noted that the popular drink has been purchased more than 2.25 million times on stadium grounds, per The Business Insider.

Williams' TikTok video of her reacting as she took a sip of the drink has racked