Analysis-Serena's impact to be felt long after retirement

Serena Williams was eliminated from the U.S. Open on Friday in what may be the last match of her illustrious career but the impact she had on the game she dominated for over two decades will be felt for generations to come.

Williams, who made her professional debut in 1995 a year after her older sister Venus, has been one of the game's most marketable stars. She has a slew of corporate partners and in 2019 became the first athlete to land on Forbes' list of America's richest self-made women.

Williams, 40, who also lost in the U.S. Open doubles competition alongside sister Venus, said in a Vogue article last month that she was "evolving away from tennis" and added in an Instagram post that "the countdown has begun."

While Williams has not stated precisely when her last tournament is, U.S. Open organisers feted her with an elaborate farewell ceremony after her first-round match on Monday.

Williams revolutionized women's tennis with a lethal mix of powerful serves, groundstrokes and superb athleticism and became the most successful player in the Open Era by collecting 23 Grand Slam titles, the most recent coming in 2017.

That success also inspired a generation of tennis players, including Naomi Osaka who beat Williams in the 2018 U.S. Open final to claim the first of her four majors and remembers watching her childhood idol.

"When I was younger, the family event would be watching Serena and Venus," said Osaka, who has Japanese and Haitian parents.

"So when I was watching that, that pushed me a lot. I never got to watch them play live, in a match, but I've gotten to watch their practices. Seeing that, seeing people that look like me, it's definitely inspiring."

WOMEN'S RIGHTS

Throughout her career, Williams has been outspoken about