A regular visitor to Auburn throughout the year, Harrell said, "I just like the atmosphere at Auburn. Everything about it is great. They treated me like family before I committed. That is why I chose Auburn."
Harrell said that he made 75 tackles with nine sacks as a junior for Dallas County High. In basketball he averaged 10 points and 10 rebounds.
A visitor to Auburn several times in the past few months including Big Cat Weekend, Harrell said those trips have given him a good idea about both the campus and university as well as the Tigers' coaching staff.
"It was real big for me," Harrell said. "That helped out a lot. I had a chance to talk to the coaches and the players. I could spend time around them and see what everybody was like. I got to see the atmosphere and that meant a lot. It's one of the reasons I chose Auburn."
Another one of the big reasons was his relationship with future position coach Tracy Rocker. An All-American and one of the top defensive linemen in Auburn history, Harrell said he thinks Rocker can help him achieve some of those things in the coming years.
"I really like coach Rocker," Harrell said. "I think he's a great coach. He's friendly and treats you straightforward. That's what I like. I think I have a better chance with him of getting to the league (NFL) because of his experience. He's just a great coach and a great guy."
Harrell said in addition to his respect for Rocker, he's very excited about playing for Gene Chizik in college. A defensive-minded coach, Harrell said that Chizik is just a guy that you enjoy playing for because he doesn't pull any punches.
"Coach Chizik is just straight up," he said. "He told me how things were going to be once I got there. He said I would have a chance to play but probably wouldn't start right away. He said I would have a chance to get in and play if I worked hard enough."
Auburn's 15th commitment joining a very strong class already, Harrell said the excitement level for himself and his fellow verbal commitments is getting higher every day the more the class begins to take shape.
"It's very exciting," Harrell said. "Coach Rocker was talking about the defensive line and how he wants it to be the best at the school like the running backs used to be a couple of years ago. He's trying to bring everyone together and put Auburn back in top. That feels great. I think we're going to do big things."
Harrell and his Dallas County teammates open the regular season on Aug. 27 at Billingsley.