Culberson attended
Mississippi State University and was a four-year starter, starting at
cornerback as a freshman and playing some
safety before adding significant size to his frame to help facilitate a move to linebacker. He finished his college career with 42 games played (36 starts), 278 tackles, 13.5 tackles for loss, 2.0 sacks, four interceptions, 13 passes defensed, four forced fumbles. He began his career at Mississippi State as a cornerback before moving to linebacker. He was first-team
All-Southeastern Conference as a senior after leading the Bulldogs with 102 tackles. As a junior, he had 78 tackles, which also led the team. Began sophomore season as reserve safety before moving to linebacker and he started the final five games of the season as outside linebacker, registering 56 tackles and a 35-yard interception return for a touchdown. Culberson was named Freshman All-SEC by
The Sporting News and league’s coaches and started at cornerback in first eight games of season before suffering a broken leg. He totaled 42 tackles and a team-leading six passes defensed. He was the first true freshman to start for the Bulldogs since 1986. ==Professional career==