Japanese trainer who helped Sharapova conquer French Open reflects on her retirement - The Mainichi
Center court with Naomi Osaka's trainer: How a star copes with the pandemic - The Mainichi
An inside look at how tennis pros at the US Open train — and what they eat for fuel - MarketWatch
ITF on Twitter: "“Her desire to get better every day... She's only 23, but she has won four Slams already” 🏆 The exceptional @naomiosaka is one-of-a-kind says her coach Yutaka Nakamura! 🤯 #
Yutaka Nakamura Physical Trainer - Grand Slam Experience