10 rounds

Johnny
Mason
VS
Cleveland
Williams

Williams · KO 1/10

Jun 11, 1957 · Sam Houston Coliseum, Houston, 🇺🇸

Mason going in—

Williams going in36-2-1

Confirmation✓ one source

MethodKO

Round1 of 10

Sources

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

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