Mark J. Rebilas-USA TODAY Sports
If you ask me, Stefphon Jefferson is far and away the biggest signing in the UDFA class.
Jefferson had a big year at Nevada, carrying the ball 375 times for 1,883 yards and 24 touchdowns. With production like that, even in the Mountain West, it's astounding that he went undrafted.
A likely reason is that he had a poor combine. Jefferson ran the 40-yard dash in 4.68 seconds, and his vertical and broad jumps were 31" and 117", respectively.
He improved his 40 time at his pro day to 4.62 seconds, but he's just not that impressive physically. But again, you can't argue with how good he looked on the field this season, and for an undrafted free agent, he's a great pickup.
If Jamie Harper doesn't have a solid training camp, Jefferson could find himself on the roster, and he's almost a shoo-in for the practice squad.
If you want to know more about Jefferson, check out his draft diary here.