6 rounds

Roberto
Lopez
VS
Francisco
Sierra

Sierra · RTD 2/6

Oct 26, 2007 · Auditorio el Barretal, Tijuana, 🇲🇽

Lopez going in—

Sierra going in13-2-0

Confirmation✓ one source

MethodRTD

Round2 of 6 · 3:00

Sources

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

✓