2022 season Morrison earned immediate playing time in his true freshman year at
Notre Dame in 2022. He made his collegiate debut on September 3, 2022, against
Ohio State, collecting three total tackles and a pass deflection. Against
California on September 17, Morrison made his first career start by tallying three tackles. He had his first two career interceptions in an upset victory over
Clemson on November 5. Two weeks later, on November 19, he had three interceptions against
Boston College, tying the NCAA single-game record. In the
2022 Gator Bowl, Morrison added his team-high sixth interception of the season against
South Carolina. Morrison finished the season with 33 tackles (22 of them solo), four pass breakups, six interceptions, and a pick-six. He was named Freshman All-American by
On3.com,
College Football News,
Pro Football Focus. He was also named True Freshman All-American by
The Athletic,
247Sports,
ESPN, and by the
Football Writers Association of America (FWAA).
2023 season Morrison was named a preseason
All-American by
NBCSports, FWAA, and ESPN. On June 9, 2023, Morrison was named the fourth best cornerback in college football. He was also placed on the watchlist for the
Bronko Nagurski Trophy, the
Jim Thorpe Award, and the
Chuck Bednarik Award. On September 19 against
NC State, Morrison caught his first interception of the season. He also added three solo tackles in a 45–24 victory. In a game against No. 10
USC, Morrison intercepted
Caleb Williams, setting up
Audric Estimé for a one-yard touchdown run. The
Fighting Irish would end up upsetting Williams and the Trojans, 48–20. Morrison would then be ruled out of Notre Dame's game against
Pittsburgh due to a quad injury. On November 1, Morrison was named a semifinalist for the Jim Thorpe Award.
2024 season Morrison was once again named a preseason first team All-American by ESPN and The Sporting News. He totaled 20 tackles and four pass breakups in
Notre Dame's first six games, including five tackles and two pass breakups in a win against
Louisville. Morrison's season was cut short by an injury to his hip sustained in the Irish's 49-7 win over
Stanford, which required season-ending surgery. He entered the
2025 NFL draft after Notre Dame's run to the
CFP National Championship Game, where they lost to
Ohio State.
College statistics ==Professional career==