Serena Williams hints at retirement, says she's "evolving away from tennis"

Serena Williams appears to be getting ready to step off of professional tennis courts for good. The legendary athlete, who's won countless titles over a playing career that has spanned nearly three decades, suggested that she intends to retire after the upcoming U.S. Open in a Vogue essay published on Tuesday.

Williams, 40, is currently playing in the Canadian Open, where she claimed her first singles victory in slightly more than a year earlier this week, and where she'll return to play another match on Wednesday. While continuing to face the world's top athletes in tournaments like Wimbledon and last year's French Open, Williams has also increasingly turned her attention to projects outside of tennis in recent years. 

In her new essay, she said that "evolving away from tennis" would give her an opportunity to prioritize other things.