Desclaux was born in
Collioure into a family that operated a anchovy-salting factory. He developed his rugby during his time boarding at Collège de Perpignan and when back home played for Collioure sportif. A foundation player for
USA Perpignan in 1933, Desclaux debuted for
France the following year and played international rugby union until 1938, when after captaining his club to the
Brennus Shield title decided to sign with
rugby league side Bordeaux XIII. He returned to rugby union after rugby league was banned by the Vichy government in World War II, during which he served with the 4th Engineering Corps in Grenoble. On New Year's Day 1945, Desclaux was capped again for France in a match against the British Army. ==See also==