Dan Carter’s discipline. Richie Mo’unga’s energy. Quade Cooper’s edge. Kintetsu Liners’ head strength and conditioning coach Takeshi Sakaguchi has trained elite number 10’s and he’s just started working with Springboks Manie Libbok. In this exclusive RugbyJP.com interview, Sakaguchi explains how Japanese rugby is evolving and why consistency, detail and mindset define world-class players.   Sakaguchi has established himself as a go-to authority on strength and conditioning i