UNC linebacker Joe Jackson will be unable to continue his playing career after suffering a neck injury. The university announced Jackson’s decision on Thursday.

Jackson, a junior from Jacksonville, Florida, was injured in the season-opening loss to South Carolina, in Charlotte.

Jackson said in a release, “After talking with my family and the UNC doctors, I have decided it is in my best interest to stop playing football. It was a difficult decision, and I appreciate the support of my teammates and coaches.”

Jackson was listed as a starting linebacker entering the season and made four tackles against South Carolina before being injured.