A world champion in two weight classes, Gatti held the IBF junior lightweight title from 1995 to 1998, and the WBC super lightweight title from 2004 to 2005. He also participated in "The Ring" magazine's Fight of the Year a total of four times (1997, 1998, 2002, and 2003). He announced his retirement on July 14, 2007. After his death in 2009, Gatti was inducted into the International Boxing Hall of Fame on December 10, 2012 in his first year of eligibility, becoming the tenth Canadian boxer to be so inducted.