section_path: Professional wrestling career/Lucha Underground (2015–2019)
section_name: Lucha Underground (2015–2019)
paragraph_text: Lucha Underground (2015–2019)
  
  Cobb signed to Lucha Underground in 2015. He debuted for the promotion on March 22, 2016, under a mask and the ring name "The Monster" Matanza Cueto, the storyline brother of Dario Cueto, winning the Lucha Underground Championship in his first match.
  
  Matanza remained undefeated until April 9, 2016, when he was pinned by Rey Mysterio in an Aztec Warfare match, losing the Lucha Underground Championship in the process.
  
  His character was killed off in the fourth season, which aired in 2018. Despite this, it was reported in April 2019 that Cobb was seeking legal action to be released from his Lucha Underground contract. This came after similar motions from others on the show, including King Cuerno and Joey Ryan. More days later, it would be confirmed that he had been released from the company.
  
  Cobb signed to Lucha Underground in 2015. He debuted for the promotion on March 22, 2016, under a mask and the ring name "The Monster" Matanza Cueto, the storyline brother of Dario Cueto, winning the Lucha Underground Championship in his first match.
  
  Matanza remained undefeated until April 9, 2016, when he was pinned by Rey Mysterio in an Aztec Warfare match, losing the Lucha Underground Championship in the process.
  
  His character was killed off in the fourth season, which aired in 2018. Despite this, it was reported in April 2019 that Cobb was seeking legal action to be released from his Lucha Underground contract. This came after similar motions from others on the show, including King Cuerno and Joey Ryan. More days later, it would be confirmed that he had been released from the company.