10 rounds

Willie
Warren
VS
Marvelous
Marvin Hagler

Hagler · TKO 7/10

Updated Oct 12, 2026 · Sources: English Wikipedia, Wikipedia (ja)

Nov 11, 1978 · Boston Garden, Boston, 🇺🇸

Warren going in—

Hagler going in41-2-1

Confirmation✓ one source

MethodTKO

Round7 of 10

Sources

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

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