sentences:  After several wins and only a single draw later, Guerrero won the WBC NABF Featherweight title against Cesar Figueroa on December 9, 2004.Defending his NABF title twice, Guerrero was seen as a rising prospect, until meeting Gamaliel Diaz in a bout televised on ShoBox, on the Showtime channel, on December 12, 2005.An aggressive Diaz upset Guerrero, winning by split decision and taking the NABF belt in the process.