 Leen Jansen

Leonardus ("Leen") Eustachius Jansen (3 August 1930 – 27 January 2014) was a boxer from the Netherlands, who competed for his native country at the 1952 Summer Olympics in Helsinki, Finland.There he was stopped in the quarterfinals of the men's Middleweight (−75 kg) division by eventual winner Floyd Patterson of the United States.