4 rounds

Robert
Ziegler
VS
Mike
Rossman

Rossman · TKO 3/4

Sep 24, 1973 · The Spectrum, Philadelphia, 🇺🇸

Ziegler going in—

Rossman going in1-0-0

Confirmation✓ one source

MethodTKO

Round3 of 4

Sources

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

✓