After graduating from high school, he joined Gamba Osaka in 1993. he played as regular player from the first season.
On 20 November, he became the youngest player to score a hat-trick in J1 League at age 18 years, 364 days.
After retirement, Matsunami started coaching career at Gamba Osaka in 2006.
Although the club won the 2nd place Emperor's Cup, he resigned end of 2012 season.
This biographical article related to a Japanese association football forward, born in the 1970s is a stub.