Serena Williams (born September 26, 1981) is widely regarded as one of the greatest athletes in tennis history, holding a record 23 major women's singles titles in the Open Era and spending 319 weeks as the world No. 1. She is the only player ever to achieve a Career Golden Slam in both singles and doubles, and she completed two "Serena Slams" by winning all four major titles consecutively in 2002–2003 and 2014–2015. Alongside her sister Venus, she won 14 major women's doubles titles without ever losing a final, and her four Olympic gold medals tie an all-time record. After turning professional in 1995, she claimed her 23rd major at the 2017 Australian Open, surpassing Steffi Graf's record, before taking a break for pregnancy and later playing her final match at the 2022 US Open, with a return planned for 2026. Beyond her on-court dominance, she revolutionized the sport with her power and athleticism, and became the highest-earning woman athlete of all time, topping Forbes' list in 2016 and 2017. Her accolades include a record four Laureus World Sportswoman of the Year awards, the 2015 Sports Illustrated Sportsperson of the Year honor, and a 2020 ranking by the Tennis Channel as the greatest women's player ever.