Vacant North American middleweight title · 10 rounds

Willie
Monroe
VS
Marvelous
Marvin Hagler

Hagler · TKO 2/10

Aug 23, 1977 · Spectrum, Philadelphia, 🇺🇸

Monroe going in—

Hagler going in33-2-1

Confirmation✓ one source

MethodTKO

Round2 of 10 · 1:46

TitleVacant North American middleweight title

Sources

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

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