![Martina Hingis on Twitter: "well look what I found! #australianopen https://t.co/fGbHkzAezN" / Twitter Martina Hingis on Twitter: "well look what I found! #australianopen https://t.co/fGbHkzAezN" / Twitter](https://pbs.twimg.com/media/C2F076FWEAA2ApM.jpg)
Martina Hingis on Twitter: "well look what I found! #australianopen https://t.co/fGbHkzAezN" / Twitter
![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-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
![One day, one epic match: Graf - Hingis (Final 1999) - Roland-Garros - The 2022 Roland-Garros Tournament official site One day, one epic match: Graf - Hingis (Final 1999) - Roland-Garros - The 2022 Roland-Garros Tournament official site](https://images.prismic.io/fft-rg-commun-news/e6d6c5d7-ab6f-44ac-a523-a3549fdbdca0_19990601_RG_FTT_000486_web.jpg?auto=compress,format)
One day, one epic match: Graf - Hingis (Final 1999) - Roland-Garros - The 2022 Roland-Garros Tournament official site
![11 Sep 1999: Serena Williams of the USA is congratulated by Martina Hingis of Switzerland after their US Open final (Clive Brunskill/Allsport) | Tennismash 11 Sep 1999: Serena Williams of the USA is congratulated by Martina Hingis of Switzerland after their US Open final (Clive Brunskill/Allsport) | Tennismash](https://tennismash.com/wp-content/uploads/2019/08/Serena-Williams-Martina-Hingis-US-Open-1999.jpg)
11 Sep 1999: Serena Williams of the USA is congratulated by Martina Hingis of Switzerland after their US Open final (Clive Brunskill/Allsport) | Tennismash
![Raducanu follows footsteps of Serena Williams & Martina Hingis, last teenagers to play US Open final | Daily Mail Online Raducanu follows footsteps of Serena Williams & Martina Hingis, last teenagers to play US Open final | Daily Mail Online](https://i.dailymail.co.uk/1s/2021/09/11/08/47745955-9977345-Hingis_right_was_18_and_had_already_won_Grand_Slam_titles_in_sin-a-40_1631346405661.jpg)