21. Zack Martin (Offensive Tackle, Notre Dame)
Matin was a standout tackle for Notre Dame, but may be forced inside to guard in the NFL due to his size. His technique and strength make him a tantalizing option. Martin is as likely to slam opponents into the ground as he is to burst into the second level to punish a defensive back. (Getty Photo/Jonathan Daniel)
The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.