10 rounds

Guillermo
Tellez
VS
Chucho
Castillo

Tellez · TKO 5/10

Sep 25, 1965 · Arena Coliseo, Mexico City, 🇲🇽

Tellez going in—

Castillo going in19-3-0

Confirmation✓ one source

MethodTKO

Round5 of 10

Sources

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

✓