MMQB Mail: NFL teams hung up on strength issues of Iowa's Clayborn - SI.com

MMQB Mail: NFL teams hung up on strength issues of Iowa's Clayborn SI.com Defensive end Adrian Clayborn's hair makes him easily identifiable on the field, but another physical attribute has NFL teams uncertain about his impact on the next level. One of the underrated mysteries of the first round of the NFL draft 16 days from ... and more »