Prior to his work in football, Leproux worked for the music recording label PolyGram before moving on to the French television service M6, where he was later named vice-chairman.
[citation needed] While at M6, Leproux was the director of football club Bordeaux.
[citation needed] In 2006, he was recruited to head the French site of Axel Springer AG and was tasked with creating an English version of the German magazine Bild.
[citation needed] In September 2009, Leproux was named president of football club Paris Saint-Germain.
In his first year of presidency, the club won the Coupe de France.