NFL Scouting Combine is underway this week, and it kicked off Thursday with the defensive linemen and linebackers taking the field for workouts. And it's a group that will mostly certainly be researched by the Chicago Bears.

South Carolina's Nick Emmanwori posted an all-time performance for a safety during Friday's workout, while a pair of players saw their stock take a hit.

NFL Scouting Combine hits the weekend with a primetime day of skill position workouts featuring quarterbacks, running backs and wide receivers.