Born in Schœlcher, Martinique, Porsan-Clémenté is a youth exponent from Marseille. He made his league debut in a 2–0 home loss against Montpellier on 17 August 2014, replacing Florian Thauvin for the final 15 minutes. At the time, he was the youngest player to play a competitive match for Marseille (16 years and 8 months), but his teammate Bilal Boutobba again broke the record in December of that year.
