In 1988, while still in college, Leonetti spent the 1988
Western Soccer Alliance season with
F.C. Portland, a local semi-pro team. Following his graduation from the University of Portland in 1992, Leonetti signed with the
San Francisco Bay Blackhawks of the
American Professional Soccer League (APSL) which had been formed by the merger of the WSA and
American Soccer League in 1990. While he played in only eight games, scoring two goals, during league play, he added another three goals in
CONCACAF Champions' Cup play as the Blackhawks went to the semifinals, only to fall to eventual champions
Club América. He also scored a goal for the Blackhawks in the first round of the
Professional Cup. He played with the national team in September 1992, but then tore his
anterior cruciate ligament (ACL) which kept him from playing for nearly a year. In 1993, Leonetti joined the local
Portland Pride of the
Continental Indoor Soccer League, a summer indoor league. He played in Portland through the 1995 season. In February 1996, the
Los Angeles Galaxy drafted Leonetti in the 10th round (94 overall) of the
1996 MLS Inaugural Player Draft. The Galaxy cut him in pre-season and Leonetti moved north to sign with the
Seattle Sounders of the
A-League (renamed APSL). That season, the team won the league title and Leonetti was named the playoff MVP. In 1997, Leonetti decided to try out for MLS again. He attended the MLS combine, but tore the ACL in his left knee, putting him out of action for several months. That summer, he re-joined the Portland Pride for the team's last season. The Pride and its league, the CISL, folded at the end of the 1997 season. However, the team's ownership decided to re-create the team as the
Portland Pythons and entered it into the indoor
Premier Soccer Alliance in 1998. Leonetti remained with the Pythons through the end of the season. In 1999, he played his final year of soccer, this time with the
Willamette Valley Firebirds of the fourth division
USL Premier Development League. The Firebirds went to the PDL semifinals that season. Leonetti left soccer in 2000 to work for Fluid Logic, but he decided to return to the field in 2001 with the
Portland Timbers. During a pre-season game against the
University of Portland, he blew out his
Achilles tendon. While he again tried out for the team in 2002, he was cut and retired from playing professionally. ==National team==