![Serena Williams (USA) wins her first Grand Slam at the 1999 US Open Tennis Championship Stock Photo - Alamy Serena Williams (USA) wins her first Grand Slam at the 1999 US Open Tennis Championship Stock Photo - Alamy](https://c8.alamy.com/comp/2G5GWAX/serena-williams-usa-wins-her-first-grand-slam-at-the-1999-us-open-tennis-championship-2G5GWAX.jpg)
Serena Williams (USA) wins her first Grand Slam at the 1999 US Open Tennis Championship Stock Photo - Alamy
![Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Serena-USO-doubles-1999.jpg)
Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Full Match Video: Venus Williams vs. Mary Joe Fernandez, 1999 US Open fourth round - Official Site of the 2022 US Open Tennis Championships - A USTA Event Full Match Video: Venus Williams vs. Mary Joe Fernandez, 1999 US Open fourth round - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Venus_1999_20200529.jpg)
Full Match Video: Venus Williams vs. Mary Joe Fernandez, 1999 US Open fourth round - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Agassi-champion-2_50th.jpg)
Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Serena Williams celebrates her victory over Martina Hingis in the 1999 US Open final (Getty Images) | Tennismash Serena Williams celebrates her victory over Martina Hingis in the 1999 US Open final (Getty Images) | Tennismash](https://tennismash.com/wp-content/uploads/2019/08/Serena-Williams-wins-US-Open-1999.jpg)
Serena Williams celebrates her victory over Martina Hingis in the 1999 US Open final (Getty Images) | Tennismash
![Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://usopenvideo-a.akamaihd.net/2019/1587677001493445_0003_O_1920x1080_1280x720.jpg)
Full Match Video: Andre Agassi vs. Todd Martin, 1999 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_GettyImages-72283925.jpg)
Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Serena-2-1999_50th.jpg)
Serena vs. Hingis: When teenage Grand Slam finals were the norm - Official Site of the 2022 US Open Tennis Championships - A USTA Event
![Serena Williams (USA) with Martina Hingis (SWI) wins her first Grand Slam at the 1999 US Open Tennis Championship Stock Photo - Alamy Serena Williams (USA) with Martina Hingis (SWI) wins her first Grand Slam at the 1999 US Open Tennis Championship Stock Photo - Alamy](https://c8.alamy.com/comp/2G5GTR3/serena-williams-usa-with-martina-hingis-swi-wins-her-first-grand-slam-at-the-1999-us-open-tennis-championship-2G5GTR3.jpg)