Allen Mogridge, UNC's tight ends coach, gave Knox the news of the Tar Heel offer.
"[Mogridge] told my coach that he wanted me to call him," Knox said. "[Mogridge] said he liked my skill set as a tight end. He said he would like my strength and skills at tight end for them. So they were going to offer me."
Over the weekend, UNC's coaches hinted to Knox that a scholarship offer was forthcoming.
"I went to their spring game and I met them one-on-one," Knox said. "They were really interested in my size, because my Youtube video was blowing up… They gave me an indication that they were close to offering. Coach [Troy] Douglas told my parents to be patient that an offer was coming."
Although he's open to every school, UNC is Knox's early favorite.
"My top choice right now that I'm leaning towards is UNC Chapel Hill, because of my established relationship with the coaches," Knox said.
In particular, Knox calls Mogridge every Monday night at 9.
"We talk to try to establish a relationship," Knox said.
Despite possessing an offer from his leader, Knox says he isn't anywhere close to making a verbal commitment.
"I really want to experience the recruiting process, because you can only go through it once," Knox said. "During or after the football season, I'll probably commit."
The only other school Knox has visited is Duke a couple of months ago. He'll visit his third school this Saturday when he attends NC State's Spring Game.
Knox began his prep career at Concord's archrival, Kannapolis (N.C.) Brown. He transferred to Concord prior to his sophomore year, where he immediately became a starter. As a junior, Knox caught 14 passes for 253 yards and eight touchdowns.