Guerra de Titanes (2009) was the thirteenth annual Guerra de Titanes professional wrestling show promoted by AAA since 1997. The show took place on December 11, 2009 in the Ciudad Madero, Tamaulipas Convention center, a site that AAA has used for many of their major shows. Guerra de Titanes is AAA's "End of year" show and the fifth of their "big shows" they hold every year. The Main Event saw Dr. Wagner Jr. defend the AAA Mega Championship against El Mesias in a Domo De La Muerte cage match. The show also featured two AAA championship matches as Nicho el Millonario and Joe Líder defended the AAA World Tag Team Championship and Mini Charly Manson defended the AAA World Mini-Estrella Championship. Furthermore a "Mask vs. Hair", Lucha de Apuesta match between Faby Apache and Sexy Star took place as well. Finally the show featured a Six-man "Lucha Libre rules" tag team match and a four on four "AAA vs. La Legion Extranjera elimination match where the winner would receive a title match for the AAA Mega Championship as AAA's 2010 Rey de Reyes show.

Juan Manuel González Barrón is a Mexican luchador who is best known under the ring name Dr. Wagner Jr., having used that name since 1987. He is the son of Manuel González Rivera, better known as Dr. Wagner and the brother of the late César Cuauhtémoc González Barrón, who worked primarily under the name Silver King. His son made his lucha libre debut 2009 under the ring name El Hijo de Dr. Wagner Jr. González was once married to professional wrestler María Moreno León, better known as Rossy Moreno.