Rosemy-Jacksaint's 2020 season was ended short after he suffered a season-ending leg injury on a 32-yard touchdown reception versus
Florida. He finished his true freshman season in 2020 with four receptions for 62 yards and a touchdown. In the 2021 season, Rosemy-Jacksaint hauled in seven passes for 94 yards. During the 2022 season, he notched 29 receptions for 337 yards and two touchdowns. Rosemy-Jacksaint finished the 2023 season with 32 receptions for 502 yards and four touchdowns. After the conclusion of the 2023 season, Rosemy-Jacksaint decided to declare for the
2024 NFL draft. ==Professional career==