Rey Mysterio

Óscar Gutiérrez (born December 11, 1974), better known by his ring name Rey Mysterio, is an American professional wrestler. He is currently signed to WWE. He wrestles on the SmackDown brand. Mysterio is often said to be one of the greatest professional wrestlers of all time. He is credited for making cruiserweight wrestling popular. Mysterio is one of the world's most recognizable "lucha libre" wrestlers.
Mysterio is the nephew of Rey Misterio Sr., He began his professional wrestling career in 1989 on the independent circuit. He was 14 years old. He signed with Asistencia Asesoría y Administración (AAA) in 1992. After a short time wrestling for Extreme Championship Wrestling (ECW), Mysterio went to work for World Championship Wrestling (WCW) in 1996. In WCW, Mysterio helped popularize "lucha libre" in the United States. This led to cruiserweight wrestling divisions being more popular. He won the WCW Cruiserweight Championship five times and the WCW World Tag Team Championship three times. He then wrestled for Consejo Mundial de Lucha Libre (CMLL). Mysterio joined World Wrestling Entertainment (WWE) in 2002.
In WWE, Mysterio won the Cruiserweight Championship three times. He won the World Heavyweight Championship, the Intercontinental Championship and the United States Championship twice each. He also won the WWE Championship once. Mysterio has won the Tag Team Championship four times. He is WWE's 21st Triple Crown and Grand Slam champion, is a Royal Rumble match winner, and has headlined several WWE pay-per-view events. Mysterio left WWE in 2015. He wrestled for New Japan Pro-Wrestling (NJPW) and AAA. Mysterio returned to WWE in 2018. He won the U.S. Championship twice and SmackDown Tag Team Championship. His tag team partner was his son Dominik.
AAA Return (2015–2017).
On March 3, 2015, it was announced that Mysterio resigned with Asistencia Asesoría y Administración (AAA). He made his return to the promotion at the 2015 Rey de Reyes ("King of Kings"). He teamed up with Myzteziz in the main event against El Hijo del Perro Aguayo and Pentagón Jr.
On March 20, 2015, Mysterio teamed with Extreme Tiger to face El Hijo del Perro Aguayo and Manik. In the match, Mysterio used a headscissors takedown to throw Aguayo out of the ring. When Aguayo got back into the ring, Mysterio dropkicked him in the head to set up for his finisher, the 619 which caused Aguayo to land on the middle rope. Aguayo appeared to be limp while hanging on the middle rope. The match was finished when Mysterio pinned Manik. Aguayo was later brought out of the ring and was rushed to the Del Prado hospital. He was pronounced dead around 1:00am on March 21. Mysterio and Konnan were pallbearers at his funeral.