Serena and Venus Williams have begun their annual dominance of slaying it at the U.S. Open in New York City. Since they began playing the singles and doubles matches at the U.S. Open in 1999, Serena has won five titles (1999, 2002, 2008, 2012, 2013, 2014) and Venus has won two (1999, 2009). The sisters will undoubtedly go down in sports history as two of the greatest athletes of all time.
In honor of their years with the racket, check out their epic moments on the court.
1. Venus And Serena In 1992

(Photo by Art SEITZ/Gamma-Rapho via Getty Images)
2. 1999 French Open

(Photo by Art SEITZ/Gamma-Rapho via Getty Images)
3. 2000 Wimbledon

(Photo by Arnold Slater/Mirrorpix/Getty Images)
4. 2002 Wimbledon

(Photo by ACTION PLUS/ActionPlus/Corbis via Getty Images)
5. 2009 Wimbledon Championships

(Photo by PA Images via Getty Images)
6. 2014 Wimbledon Championships

(Photo by John Walton/PA Images via Getty Images)
7. 2011 La Macarena

(Photo credit should read RAUL ARBOLEDA/AFP/Getty Images)
8. 2015 US Open

(Photo by Gary Hershorn/Corbis via Getty Images)
9. 2016 US Open

(Photo by Tim Clayton/Corbis via Getty Images)
10. 2016 French Open

(Photo by Mustafa Yalcin/Anadolu Agency/Getty Images)
11. 2017 Australian Open

(Photo by Scott Barbour/Getty Images)
12. 2018 US Open

(Photo by Adrian Edwards/GC Images)
13. Keep On Slaying Venus And Serena

(Photo by Timothy A. CLARY / AFP)