Key picked the Cornhuskers over Ole Miss, Georgia and others.
Rhule snagged Key at the perfect time, he's coming off his best season with the Wildcats, securing a career-high 47 receptions and receiving yards in 715 yards.
Key's consistency will make him an instant impact player for Nebraska next season. He's been a starter since his true freshman season and accumulated 1,870 yards on 126 receptions and scored 14 touchdowns.
Key checked in at No. 13 overall in the Rivals Portal rankings.