In his career Muñoz held several top championships promoted by Empresa Mexicana de Lucha Libre (EMLL).
[7] As a result of the injury Muñoz was forced to vacate the NWA World Welterweight Championship and temporarily retire from wrestling.
[9] by 1978 Muñoz dropped the "White Man" character as he was forced to work a reduced schedule due to age and injuries.
[9] Muñoz' last notable wrestling appearance came in April, 1979 when he lost a Luchas de Apuesta, hair vs. mask match, to Villano III.
[10] Apuesta matches often pay a quite a lot to the person agreeing to lose his hair or mask, giving Muñoz one last big payday before retiring in the early 1980s.