Lavault started rugby in Thouars before joining Stade Rochelais in 2016.
In 2018 at the age of 18, he was called up to the French U20 team to compete in the 6 Nations Tournament.
In June, he was crowned U20 World Champion with Les Bleus after having played the entire competition as a starter.
Bothered by injuries for two years, he played his first match in the La Rochelle first team during the 2019/2020 season.
As of September 2020, he has made 13 appearances for the French club and has scored 5 points.
In January 2021, he was called into the France Six Nations squad.
JW Jan 2021
Career
 |
La Rochelle No 4 Lock |
2019 - present |
 |
France U20's No 4 Lock |
2018 - 2019 |
 |
Barbarians No 4 Lock |
2022 - 2022 |
 |
France No 4 Lock |
2022 - 2023 |
