Jeff Cobb

Jeffrey Cobb (born July 11, 1982) is an American professional wrestler and former amateur wrestler. He is signed to New Japan Pro-Wrestling (NJPW), where he is a member of Unbound Co.. As an amateur wrestler, Cobb represented Guam at the 2004 Summer Olympics, where he became the nation's flag bearer in the opening ceremony and competed in the men's light heavyweight freestyle category. He began his professional wrestling career in 2009 on the independent circuit, performing for various promotions around the Hawaiian and West Coast independent scenes. In 2015, he began working for Lucha Underground as Matanza Cueto, the kayfabe brother of owner Dario Cueto, where he is a former one-time Lucha Underground Champion. In 2016, he began working for Pro Wrestling Guerrilla (PWG), where he became a former one-time PWG World Champion, one-time PWG World Tag Team Champion and is also the winner of the 2018 Battle of Los Angeles. He began predominantly working for New Japan Pro-Wrestling (NJPW) in 2017 and signed with the company in 2019, where he became a member of the United Empire in 2020. He is a former one-time NEVER Openweight Champion, one-time NJPW World Television Champion, and a three-time IWGP Tag Team Champion. Through NJPW's working relationship, he also made appearances for All Elite Wrestling (AEW) and Ring of Honor (ROH) where he is a former one-time ROH Television Champion. He departed NJPW in 2025 and signed with WWE that same year as JC Mateo, becoming part of the MFT's stable upon debut until his departure in May 2026. He returned to NJPW that August as a member of Unbound Company.