Kazakhstan's Mikhail Kukushkin serves against Japan's Kei Nishikori... News Photo - Getty Images
2016 Memphis Open QF: Nishikori defeats Kukushkin : Tennis Buzz
Kei Nishikori vs Mikhail Kukushkin Indian Wells Masters tennis live: Nishikori to maintain perfect record vs Kukushkin | テニス
Tennis: Nishikori overcomes slow start to oust Kukushkin and reach Brisbane quarter-finals, Tennis News & Top Stories - The Straits Times
Live Tennis on Twitter: "Live soon! Kei #Nishikori vs Mikhail #Kukushkin - stream > https://t.co/lZOvLFVju4 Match preview > https://t.co/lycUzVacNj… https://t.co/UpQb640BQ7"
Japan's Kei Nishikori plays against Mikhail Kukushkin of Kazakhstan... News Photo - Getty Images
Mikhail Kukushkin - Wikipedia
Nishikori, Anderson reach Vienna final | Hindustan Times
Vienna Open - Kei Nishikori to face Kevin Anderson in final
Tennis: Nishikori, Anderson reach Vienna final, Tennis News & Top Stories - The Straits Times
Wimbledon Nishikori
Match Point: Kei Nishikori vs Mikhail Kukushkin Wimbledon 2019 - YouTube
José Morgado on Twitter: "Kei Nishikori beats Mikhail Kukushkin 6-3, 3-6, 6-3, 6-4 to reach the QFs at #Wimbledon. -- 2nd QF at #Wimbledon (2018, 2019) -- 5th consecutive GS QF Wimbledon
 "Kei Nishikori Opens Memphis Title Defense With Win | Tennis News")
Kei Nishikori Opens Memphis Title Defense With Win | Tennis News
Nishikori marches on in Memphis
Nishikori makes winning start at Geneva Open | The Japan Times
Kei Nishikori of Japan hits a backhand against Mikhail Kukushkin of... News Photo - Getty Images
Kei Nishikori eases into Geneva Open quarterfinals | Sports News,The Indian Express
Kevin Anderson vs Kei Nishikori in Vienna final | AM 1420 The ANSWER - Cleveland, OH
Kei Nishikori Photos: 2016 Brisbane International - Day 4 | Kei nishikori, Sports awards, Photos 2016
Tennis: Kei Nishikori cruises into Erste Bank Open final
2016 Memphis Open QF: Nishikori defeats Kukushkin : Tennis Buzz
Genève : Kei Nishikori solide face à Mikhail Kukushkin - L'Équipe
Japan's Kei Nishikori returns in his match against Mikhail Kukushkin on the second day of the 2012 Wimbledon championships in London, June 26 2012. UPI/Hugo Philpott Stock Photo - Alamy
