10 rounds

Luis
Vinales
VS
William
Douglas

Douglas · KO 1/10

Jun 11, 1969 · Fairgrounds, Columbus, 🇺🇸

Vinales going in—

Douglas going in9-3-0

Confirmation✓ one source

MethodKO

Round1 of 10 · 2:40

Sources

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

✓