10 rounds

Derrick
Jefferson
VS
Bert
Cooper

Jefferson · TKO 2/10

Mar 4, 1999 · Soaring Eagle Casino, Mount Pleasant, Michigan, 🇺🇸

Jefferson going in1-0-0

Cooper going in34-19-0

Confirmation✓ one source

MethodTKO

Round2 of 10 · 1:02

Sources

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

✓