Kosaku MasudaKosaku Masuda is a Japanese football manager and former player who is the manager of J2 League club Tokushima Vortis.Playing careerMasuda was born in Saitama Prefecture on April 30, 1976. After graduating from high school, he played for Bolivian club Oriente Petrolero and Brazilian club Sãocarlense. In 1998, he returned to Japan and joined J1 League club Verdy Kawasaki. However, he could hardly play in the match. In 1999, he moved to new club Yokohama FC in Japan Football League. He played mainly as an offensive midfielder. The club won the JFL championships in 1999 and 2000 and was promoted to J2 League. He played for the club until 2004. In 2005, he played for two non-league teams in the Japanese [Regional Leagues|Regional Leagues] and Japanese [Prefectural Leagues|Prefectural Leagues], Sun Miyazaki and Machida Zelvia. He retired end of 2005 season.