Mason Green is a 6'2", 250-pound defensive lineman from Brentwood, Tennessee, where he attended Ravenwood High School. He was named First Team All-Region as a senior in 2022 and received Ravenwood's NFF Scholar Athlete Award that year. Green redshirted his first year in 2023 and did not play in 2024, earning Academic All-Big Ten honors. In 2025, he appeared in two games, making his collegiate debut against Western Illinois on September 5. Against Central Michigan on December 26, Green recorded one solo tackle and one sack. He holds a redshirt junior status for the Wildcats.