Social media reactions: ‘We will never see another Serena Williams’

WATCH: Tennis Channel - Unstrung: Serena's Upcoming Retirement

It’s been just over 24 hours since Serena Williams dropped some major news on social media—and the tennis world has been in their feelings ever since.

The 23-time Grand Slam champion let fans know that “the countdown has begun” on her impending retirement, with Serena heavily implying that the US Open would be her farewell event.

And in inimitable style, Serena announced it on her own terms: with a gorgeous cover and spread in Vogue's September issue, penning a moving op-ed summing up her emotional decision, and sharing it all on social media.

With Serena being far more than just a tennis player—she’s also an entrepreneur, equality advocate, cultural icon and fashion maven, to name a few—it’s no surprise that the news rippled beyond the tennis world.

From mega-celeb Kim Kardashian to former U.S. First Lady Michelle Obama, from F1 legend Lewis Hamilton to actors, singers and celebrities, here’s how the world reacted to Serena’s big news:

As Serena prepares for her New York City swan song, the announcement also left the tennis world paying tribute to one of the greatest players of all time.

Check out some reactions from WTA and ATP players, as well as our Tennis Channel crew, including Steve Weissman with Andy Roddick—one of Serena’s oldest friends in the sport—and Prakash Amritraj sharing his thoughts from the National Bank Open in Toronto, where Serena is currently competing:

No matter who your faves are, one thing we can all agree on: Tennis will never be the same after Serena.

The way she redefined the sport and raised the bar higher than ever before makes her the true G.O.A.T in our eyes: