Question: Mike Clancy and Freddie Blassie both won championships in what professional wrestling group?

Context paragraphs:
List of UWC Championships: United Wrestling Coalition (UWC) is an independent wrestling promotion based in New Jersey.  As a professional wrestling group, their wrestlers compete for individual and tag team championships.  Being professional wrestling championships, these titles are not won via direct competition; they are instead won via a predetermined ending to a match or awarded to a wrestler because of a wrestling angle.

Freddie Blassie: Frederick Kenneth Blassie (February 8, 1918 – June 2, 2003), better known as "Classy" Freddie Blassie, was an American professional wrestling villain and manager born in St. Louis, Missouri.  Renowned as "The Fashion Plate of Professional Wrestling", He was also a one-time NWA Georgia Heavyweight Champion and a one-time NWA Florida Heavyweight Champion.

Emilio Charles Jr.: Sergio Emilio Charles Garduño (October 12, 1956 – December 28, 2012) was a Mexican Luchador or professional wrestler who is best known under his Ring name Emilio Charles Jr.  He is the son of professional wrestler Emilio Charles.  Over the years Emilio Charles Jr. has worked for virtually all major Mexican professional wrestling promotions including Consejo Mundial de Lucha Libre (CMLL), Asistencia Asesoría y Administración (AAA) and International Wrestling Revolution Group (IWRG).  He is also one of the founding members of the wrestling group called "Los Destructores" (“the Destroyers”) along with Vulcano and Tony Arce.  He was also a key member in the group "Los Guapos" (“the Handsome Ones”) as well as a group called "Los Talibanes" (the Taliban), both with longtime wrestling partners and friends Scorpio Jr. and Bestia Salvaje.

Real Fuerza Aérea: Real Fuerza Aérea (Spanish for "Royal Air Force") was a Mexican professional wrestling group, or stable, active in the Mexican professional wrestling promotion Asistencia, Asesoría y Administración (AAA) and consists of young "tecnicos" (Face or "good guys") who all use a high flying, high risk wrestling style.

Scorpio Jr.: Rafael Núñez Juan (born October 11, 1966) is a Mexican "Luchador" or professional wrestler who is best known under his Ring name Scorpio Jr.  Núñez is the son of professional wrestler "Scorpio" and was trained by his father and Rafael Salamanca before making his debut on August 30, 1985.  Núñez was originally an "Enmascarado", masked wrestler, but lost his mask as a result of a loss to the team of Negro Casas and El Hijo del Santo on March 19, 1999 Over the years Scopio Jr. has worked for virtually all major Mexican professional wrestling promotions including Consejo Mundial de Lucha Libre (CMLL), Asistencia Asesoría y Administración (AAA) and International Wrestling Revolution Group (IWRG).  He is also one of the founding members of the wrestling group called "Los Guapos" (the Hansomes) as well as a group called "Los Talibanes" (the Taliban), both with longtime wrestling partners and friends Emilio Charles Jr. and Bestia Salvaje.

My Breakfast with Blassie: My Breakfast with Blassie is a 1983 film starring Andy Kaufman and professional wrestler "Classy" Freddie Blassie.

Los Hijos del Averno: Los Hijos del Averno (Spanish for "The Sons of Hell") is the most well known name of a Mexican professional wrestling group, called a stable in the Mexican "Lucha Libre" (Professional Wrestling) promotion Consejo Mundial de Lucha Libre (CMLL).  The group was originally formed in 2006 under the name "La Triadad del Terror" ("The Triad of Terror") and has also been briefly known as "Los Jauria del Terror" ("the Hounds of Terror").  In 2015 the group was renamed Los Hijos del Infierno ("The Sons of the Inferno") and currently consists of Mephisto, Ephesto and Luciferno and works as a "rudo" (term used for wrestlers who portray the "Bad guys") faction.  The group was led by Averno, whom the group was named after, until Averno left CMLL in 2014.

Los Oficiales Elite: Los Oficiales Elite (Spanish for "The Elite Officials") is a Mexican professional wrestling group, called a stable who works primarily for the Mexican professional wrestling promotion International Wrestling Revolution Group (IWRG).  The group is the latest incarnation of the IWRG stable "Los Oficiales", with the two groups being rivals since "Los Oficiales Elite" was created in 2011.  All three members are currently masked and use Police officer / SWAT team ring characters.

List of current champions in CMLL: In professional wrestling, championships are competed for in pre-determined matches and as a result of storylines by a professional wrestling promotion roster of wrestlers.  As of 2016 the Mexican "Lucha libre" or professional wrestling promotion known as Consejo Mundial de Lucha Libre (Spanish for "World Wrestling Council"; CMLL) promotes 23 different championships; 12 championships designated as World Championships in various divisions, 5 championships on a national level and 6 championships on a regional level.  The championships are divided into weight limits as well as gender specific and size-specific divisions.  The professional wrestling championships are not won through legitimate athletic competition; they are instead won via scripted endings to a match or on occasion awarded to a wrestler because of a storyline.

Mike Clancy: Cristopher J. Clancy (born September 9, 1924–June 15, 1988), better known as Mike Clancy, was an American professional wrestler, sheriff and businessman.  Clancy became a prominent performer throughout the National Wrestling Alliance from 1948 to 1967, capturing the NWA World Junior Heavyweight Championship and having feuds with Lou Thesz, Verne Gagne and Freddie Blassie.

Supporting paragraphs: Mike Clancy Freddie Blassie
Answer: National Wrestling Alliance