12 rounds

Alvino
Manson
VS
Marvin
Johnson

Johnson · KO 1/12

Oct 14, 1982 · Tyndall Armory, Indianapolis, 🇺🇸

Manson going in—

Johnson going in28-5-0

Confirmation✓ one source

MethodKO

Round1 of 12 · 1:00

Sources

English Wikipedia
side b · observed 2026-10-11
en.wikipedia.org/wiki/Marvin_Johnson_(boxer)

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