- nearly two Kei Nishikori is back with a bang on the ATP Tour
- Kei Nishikori says he “no for his comeback, but the looked like his old self in Atlanta
- Tennis Photos | Tennis Network
- Nishikori Confirms Long-Awaited & Outlines Details | Yardbarker
- Audio: Kei Nishikori After His Loss To Hurkacz In - Dubai Free Tennis Championships
- Tsonga as heads quarter - Eurosport
- Kei Nishikori | Overview ATP Tour Tennis
- Kei Nishikori – Press Conference - Dubai Duty
- Kei Nishikori | Overview ATP Tour Tennis
- Kei Nishikori into French last as opponent retires | Tennis News - Times of
- With Nishikori's Khachanov, Fifth-Set Kei returns at Roland Garros
- Kei Nishikori - Paribas Open
- Kei Nishikori vs Marin Full Match | 2018 US Quarterfinal - YouTube
- Nishikori Wikipedia
- Kei Nishikori Rankings Tennis.com | Tennis.com
- Nishikori Wikipedia
- U.S. Open 2014: For Kei a Move to Chase a Tennis Dream - The New York