10 rounds

Mario
Avelino Delgado
VS
Miguel
de Oliveira

Oliveira · KO 3/10

Dec 6, 1974 · Ginásio do Ibirapuera, Sao Paulo, 🇧🇷

Delgado going in—

Oliveira going in37-1-1

Confirmation✓ one source

MethodKO

Round3 of 10

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Miguel_de_Oliveira

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