Masashi Nambu has been Japan's men's national team coach since February 2014. That year he led the team to a silver medal at the Asian Games and an equal-11th finish in Group 2 of the World League. Nambu has aimed to build a strong platform for Japan for future Olympic Games success while in his role as head coach. Nambu, who was born in Osaka, also coached the club side Matsushita Panasonic Panthers from 2002 to 2014. It was there that he won Japanese Head Coach of the Year honours three times and led his team to three domestic titles. As a player he earned Top Six honours at the 1997 and 1999 Kurowashiki All-Japan Tournaments.