Green spent five seasons as a member of the Mississippi State Bulldogs, redshirting his freshman season. As a redshirt freshman, Green made 49 tackles, 2.5 of which were tackles for loss, and intercepted two passes and was named to the Southeastern Conference (SEC) All-Freshman team. He played defensive end and served as a team captain in his redshirt senior season and recorded 31 tackles, 6.5 tackles for loss and 3.5 sacks. Over the course of his collegiate career, Green made 161 career tackles (20.5 for loss) with 8.5 sacks. Off the field, Green was named to the SEC Community Service Team and was nominated for the 2018 Wuerffel Trophy. Following the end his final season, Green received an invitation to play in the 2019 Senior Bowl and made four tackles in the game.
