PLAYER ANALYSIS
Lifelong center who sees the game well and plays with plenty of grit and toughness. Shackelford has average size and below-average length so he'll have to become more accurate and consistent with his hands as both a run blocker and pass protector. He won't offer second-position flexibility and isn't going to impress with athletic traits, so backup duty might be his ceiling over the long term.
BY LANCE ZIERLEIN
NFL Analyst
