Having started his rugby career at the age of 6, Berjon went on to join La Rochelle's age-grade system in 2010 at 13 years old.
After representing every team in the side's Youth categories, he made his debut for the senior team in October 2018 in the Challenge Cup.
Berjon went on to make 11 appearances in his first season before signing a new deal in January 2020.
As of September 2020, he has made 19 appearances for the Top 14 club and has scored 10 points.
(LS September 30, 2020)
|2018 - present|
|2022 - present|