10 rounds

Stephen
Butler
VS
Vitaly
Kopylenko

Butler · SD 10/10

Updated Oct 12, 2026 · Sources: Wikipedia (ru)

May 2, 2019 · Hard Rock Hotel and Casino, Las Vegas, 🇺🇸

Butler going in—

Kopylenko going in28-1-0

Confirmation✓ one source

MethodSD

Round10 of 10

Sources

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