Sewell is a highly physical and aggressive linebacker with excellent strength and power. He uses his size and strength to deliver bone-crunching hits and dominate opposing ball carriers. Sewell is an excellent tackler who uses his strength and power to bring down ball carriers. He has good technique and a high football IQ. Sewell is a highly athletic linebacker with good speed, agility, and quickness. He has a quick first step and can quickly cover a lot of ground. While Sewell is an excellent run defender, he could improve his pass coverage skills. He needs to work on his coverage technique and reactional awareness in coverage.