10 rounds

Luis
Montoya
VS
Francisco
Sierra

Sierra · KO 2/10

Aug 18, 2006 · Arena Coliseo, Monterrey, 🇲🇽

Montoya going in—

Sierra going in9-1-0

Confirmation✓ one source

MethodKO

Round2 of 10

Sources

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

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