Johnson redshirted in 2022, before rushing for 411 yards and two touchdowns in 2023. The following season, his production increased, recording 113 yards rushing and 85 yards receiving against
Wisconsin. Johnson finished the season rushing for 598 yards and a touchdown, while also receiving 286 yards and two touchdowns. He entered the 2025 season as the Cornhusker's starting running back. In the season opener against
Cincinnati, Johnson totaled a career-high 25 carries for 108 yards in a 20–17 victory. After the conclusion of the regular season, he was named first-team All-Big Ten and
Big Ten Running Back of the Year. On December 5, 2025, Johnson declared for the
2026 NFL draft.
Statistics ==Professional career==