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Vintage portrait print of legendary American bare-knuckle and gloved boxer John L Sullivan (1858 - 1918). Sullivan, nicknamed "The Boston Strong Boy", is generally regarded as the last bare-knuckle World Heavyweight Champion
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End of a boxing era: The tale of Jake Kilrain vs. John L. Sullivan, the final bare-knuckle heavyweight title fight - syracuse.com
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BKFC president felt 'sense of vindication' after study showed bare-knuckle fights have lower concussion rate than MMA or boxing - MMA Fighting
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Bare knuckles : plus de 29 images vectorielles de stock libres de droits proposées sous licence | Shutterstock
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Irish bare-knuckle boxer setting up 'multi-million reality style fighting series to rival UFC' - Irish Mirror Online
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Bare-knuckle boxers show off horror injuries including gruesome swollen eyes after brutal bloodbath fights | The Sun
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Inside brutal world of bare knuckle boxing where tattooed brawlers trade savage blows in front of cheering crowds | The Sun
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