Ko Janssens
Jacobus Cornelius "Ko" Janssens was a Dutch boxer who competed in the 1920 Summer Olympics. In 1920 he was eliminated in the first round of the lightweight class after losing his fight to Frank Cassidy.
Jacobus Cornelius "Ko" Janssens was a Dutch boxer who competed in the 1920 Summer Olympics. In 1920 he was eliminated in the first round of the lightweight class after losing his fight to Frank Cassidy.