From his debut in 1956 until the 1970s, he primarily worked as a heel and had notable feuds with Bruno Sammartino, Dutch Savage, Jimmy Snuka, Terry Funk, and Mil Máscaras.
fɹʌm hɪz deɪbjˈuː ɪn nˈaɪntiːnhˈʌndɹɪd fˈɪfti sˈɪks ʌntˈɪl ðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, hiː pɹaɪmˈɛɹᵻli wˈɜːkt æz ɐ hˈiːl ænd hæd nˈoʊɾəbəl fjˈuːdz wɪð bɹˈuːnoʊ sˌæmɑːɹtˈiːnoʊ, dˈʌtʃ sˈævɪdʒ, dʒˈɪmi snˈuːkə, tˈɛɹi fˈʌŋk, ænd mˈɪl mæskˈɑːɹɹəz.