After showcasing his sprinter speed in Indianapolis, Arkansas RB Darren McFadden worked out Tuesday for NFL personnel at his school’s pro day. He kept his 4.33 40 mark from the combine but added an equally impressive short-shuttle time of 4.05.

"At times, it can get nerve-racking because you know you’re under a close microscope. They're critiquing everything you do, every little footstep you ta… More