Rouault joined the youth academy of
Toulouse in 2016. He made his professional debut with Toulouse in a 1–0
Ligue 2 win over
Ajaccio on 17 October 2020. On 1 September 2023, Rouault was loaned out to
VfB Stuttgart until the end of the season. When Stuttgart's place in the
2024–25 Bundesliga was mathematically confirmed in March 2024, Rouault joined the German club automatically in a permanent deal with a contract until June 2027. On 3 February 2025, Rouault returned to France and signed a four-and-a-half year contract with
Rennes. ==Career statistics==