Began playing at age five...Nickname is Kei...Mother, Eri, is a piano teacher; father, Kiyoshi...Has one older sister who is studying at college...Moved from Shimane, Japan, to US at age 14, to train at the Bollettieri Acadamey in Florida and didn't speak a word of English when he arrived..Came to academy as a member of Masaaki Morita Tennis Fund group, which consists of a select few Japanese players sponsored by Mr. Morita, CEO of Sony...A former roommate of Zachary Gilbert, son of ex-ATP Top 10 pro Brad Gilbert...Trains at Bollettieri Academy where he practices daily with Elite Group overseen by Nick Bollettieri and 'Red' Ayme...Group includes other young pros such as Jesse Levine, Ricardas Berankis (world #1 junior), Gastao Elias, Filip Krajinovic, Pavel Checkov, Philip Simmonds and many more...Captured Roland Garros junior doubles title in 2006 and ranked as high as No. 7 in singles that year...Favorite surface is hard courts and considers best shot his forehand...His idol is Roger Federer...Fitness trainer is Yutaka Nakamura and coached by former ATP pro Glenn Weiner