Luke DeJager is an edge rusher from Grand Rapids, Michigan, who attended South Christian High School. As a junior in 2022, he helped South Christian to a 14-0 record and a Division 4 state championship. During his senior season in 2023, he recorded four tackles including a 2-yard sack in the state championship game and earned OK Gold All-Conference First Team honors. DeJager joined Michigan State as a redshirt freshman and was named an Academic All-Big Ten honoree in 2025. He has not appeared in game action during his time with the Spartans.