![Marina Erakovic, of New Zealand, plays Sabine Lisicki, of Germany, during their final round tennis match at the U.S. National Indoor Championships on Saturday, Feb. 23, 2013, in Memphis, Tenn. (AP Photo/Mark Marina Erakovic, of New Zealand, plays Sabine Lisicki, of Germany, during their final round tennis match at the U.S. National Indoor Championships on Saturday, Feb. 23, 2013, in Memphis, Tenn. (AP Photo/Mark](https://c8.alamy.com/comp/2N82MJW/marina-erakovic-of-new-zealand-plays-sabine-lisicki-of-germany-during-their-final-round-tennis-match-at-the-us-national-indoor-championships-on-saturday-feb-23-2013-in-memphis-tenn-ap-photomark-humphrey-2N82MJW.jpg)
Marina Erakovic, of New Zealand, plays Sabine Lisicki, of Germany, during their final round tennis match at the U.S. National Indoor Championships on Saturday, Feb. 23, 2013, in Memphis, Tenn. (AP Photo/Mark
![UNK to Host National Indoor Tennis Championships in 2023 & 2024 - University of Nebraska - Kearney Athletics UNK to Host National Indoor Tennis Championships in 2023 & 2024 - University of Nebraska - Kearney Athletics](https://lopers.com/images/2021/7/13/Tennis_Complex_5.jpg)
UNK to Host National Indoor Tennis Championships in 2023 & 2024 - University of Nebraska - Kearney Athletics
![49 Us National Indoor Tennis Championships Stock Photos, High-Res Pictures, and Images - Getty Images 49 Us National Indoor Tennis Championships Stock Photos, High-Res Pictures, and Images - Getty Images](https://media.gettyimages.com/id/628005710/photo/memphis-united-states-japans-kei-nishikori-plays-against-germanys-benjamin-becker-in-a-u-s.jpg?s=612x612&w=gi&k=20&c=OKY23TrgaJeMpslzQM1VldzlFcpdLozswxBafm5wozU=)
49 Us National Indoor Tennis Championships Stock Photos, High-Res Pictures, and Images - Getty Images
![US National Indoor Tennis Championships: Heather Watson wins in three sets | Tennis News | Sky Sports US National Indoor Tennis Championships: Heather Watson wins in three sets | Tennis News | Sky Sports](https://e0.365dm.com/13/01/768x432/heather-watson-beaten-in-Melbourne-2013_2887547.jpg?20130221074428)
US National Indoor Tennis Championships: Heather Watson wins in three sets | Tennis News | Sky Sports
![US National Indoor Championships - A now defunct tennis tournament | Indoor tennis, Tennis tournaments, Tennis championships US National Indoor Championships - A now defunct tennis tournament | Indoor tennis, Tennis tournaments, Tennis championships](https://i.pinimg.com/736x/14/98/2c/14982ca92483fa8f1e9d223f0ef6264a--indoor-tennis-tennis-tournaments.jpg)
US National Indoor Championships - A now defunct tennis tournament | Indoor tennis, Tennis tournaments, Tennis championships
![Semifinalists Set At the 2023 ITA Division I Men's National Team Indoor Championship - ITA #WeAreCollegeTennis Semifinalists Set At the 2023 ITA Division I Men's National Team Indoor Championship - ITA #WeAreCollegeTennis](https://www.wearecollegetennis.com/wp-content/uploads/2023/02/Texas-Mens-Tennis-Indoors.jpg)
Semifinalists Set At the 2023 ITA Division I Men's National Team Indoor Championship - ITA #WeAreCollegeTennis
![US National Indoor Tennis Championships: Marin Cilic beaten by Kei Nishikori | Tennis News | Sky Sports US National Indoor Tennis Championships: Marin Cilic beaten by Kei Nishikori | Tennis News | Sky Sports](https://e0.365dm.com/13/01/2048x1152/Kei-Nishikori_2884059.jpg)
US National Indoor Tennis Championships: Marin Cilic beaten by Kei Nishikori | Tennis News | Sky Sports
![Liza Tymchenko Receives Wild Card in to US National Indoor Tennis Championships - University of Memphis Athletics Liza Tymchenko Receives Wild Card in to US National Indoor Tennis Championships - University of Memphis Athletics](https://d38tcz7gi4rwly.cloudfront.net/images/2013/2/16/8582532.jpeg?width=1416&height=797&mode=crop&quality=80&format=jpg)