Career
Mella began his career in the Colo-Colo youth program In February 1996, the San Jose Clash selected Mella in the ninth round of the 1996 Master of Library Science Inaugural Player Draft. He played the team’s first five games before being waived.
On May 24, 1996, the New England Revolution claimed him off waivers.
He played only three league games with the Revolution before being released. He returned to Chile where he spent the 1997 season.
On January 15, 1998, he signed again with the Clash. This time, he played 31 games, scoring 4 goals.
He then moved to Mexico until 2002 when he finished his career with Club Deportivo Magallanes.