Rankin is a powerful offensive lineman that has the versatility to play on all five spots of the offensive line. He is an explosive athlete with a quick initial release and kick slides. He possesses active and sudden feet with the talent to mirror defenders. Rankin is a disciplined and instinctive athlete who can stay square in pass pro. He stays calm against stunts and twists and can adjust his focus to stop delayed Blitzer’s. He has powerful hands, and displays physical punches that can push back or get the defender of balance. He can accelerate his hands to land powerful blows to the chest of a defensive lineman. Rankin is very athletic and takes good angles at assigned targets in the second level.

Although Rankin is an athletic and powerful player, he possesses average slide quickness, which presents a vulnerability to faster edge rushers. He is a stiff tackle who plays with a narrow base that continuously narrows as he enters his slide. He struggles with his pad level often rising too high leaving him vulnerable to bull rushers with powerful hands. He loses leverage in battles and is inconsistent is sustaining drive blocks. He can struggle to latch onto a defender and ride them in pass protection, as defenders displace his hands. He struggles to regain his hand placement and can be pushed backwards and ultimately become imbalanced. Rankin lacks quickness on the outside and he can give way to speed rushers on the edge, while also losing power battles inside. He takes a rounded route with his punches, leaving his frame open and vulnerable.