and Goldust for the WWE Tag Team Championship in a fatal four-way match also involving RybAxel (Ryback and Curtis Axel) and The Real Americans. At WrestleMania XXX on April 6, 2014 Mysterio competed in the André the Giant Memorial Battle Royal but was eliminated by Cesaro. On the April 7 episode of Raw, he made an appearance and lost to a returning Bad News Barrett, subsequently deciding to take time off to heal a wrist injury. During his hiatus, it was reported that Mysterio wanted to leave WWE, but the promotion had extended his contract without his approval. Mysterio did not return to WWE programming, and instead appeared in a video message at AAA's Triplemanía XXII and also visited Lucha Underground. On February 26, 2015, WWE officially announced that Mysterio's WWE contract had expired, ending his nearly 13-year tenure with the company. Return to AAA (2015–2016) On March 3, 2015, five days after being released from WWE, it was announced that Mysterio had agreed to work for Lucha Libre AAA Worldwide for the first time since 1995. He made his in-ring return as part of AAA's 2015 pay-per-view Rey de Reyes ("King of Kings") on March 18, 2015. Mysterio teamed up with Myzteziz (formerly Sin Cara in WWE) to defeat the Los Perros del Mal team of El Hijo del Perro Aguayo and Pentagón Jr., with Mysterio scoring the winning pin. This match is notorious for showing wrestler Perro Aguayo Jr.'s death in the ring following a drop kick from Mysterio. Mysterio delivered a dropkick to Perro's back, causing him to fall to the second rope, setting him up for Mysterio's signature "619" wrestling move, which involve Mysterio running towards the rope, grabbing it, and spinning around 180°, hitting the person on the face with his legs. Mysterio, seeing that something was wrong due to Perro becoming limp, purposely missed. The other wrestlers continued performing while each coming up and checking on Perro. They quickly finished the match after realizing that something serious had happened. The ref, wrestlers, and lockerroom crew came out and took Perro out using a piece of plywood. He was pronounced dead by the doctors later that night. His official death was ruled as cardiac arrest. On May 24, 2015, Mysterio came together with Myzteziz and El Patrón Alberto to form the "Dream Team" for AAA's Lucha Libre World Cup. The trio eventually won the tournament,