Sergio " Maravilla " Martinez Vs. Julio Cesar Chavez Jr. 1,487 likes. However, in this particular case; the legacy, being the son of Mexican legend Julio Cesar Chavez, is more of a hindrance than a propellant. Like Floyd Mayweather vs Manny Pacquiao, there's talk of another high-profile rematch brewing. Stadium, Arena & Sports Venue Marca TV. Sergio 'Maravilla' Martinez ... How about that name for a blast from the past? By Rey Tecson, Last Updated March 24, 2014  Photo Credits: Associated Press  Sergio “Maravilla” Martinez puts on a show and gives Julio Cesar Chavez Jr. a boxing clinic in their Middleweight bout at the Thomas and Mack Center Las Vegas Nevada. Martinez vs Chavez: Maravilla wins by UD 12. WBC medio. Sergio " Maravilla " Martinez Vs. Julio Cesar Chavez Jr. 1,484 likes. Julio Cesar Chavez Jr. 15/9/2012: Thomas Mack&Center, Las Vegas (USA). Lots to prove. Stadium, Arena & Sports Venue Vs. Sergio “Maravilla” Martinez. I don’t think there is a better example of a legacy fighter than Julio Cesar Chavez Jr. in today’s world. Pelea completa.