Joe Thomas, ILB, South Carolina State
A very productive, but small, outside linebacker in college, he's likely an inside linebacker for the Packers. Contributions on special teams could make him a dark horse to make the roster.
Chase Rettig, QB, Boston College
A four-year starter at Boston College, Rettig is likely a camp arm. If he does well enough, though, he may be able to stick on a practice squad. The fourth quarterback in camp has done so several times.
Rajion Neal, RB, Tennessee
Being a riser late in the draft process still wasn't enough to get Neal drafted, though he's talented enough to make an NFL roster. If I were DuJuan Harris, I'd be nervous about my job stability.
John Fullington, OL, Washington State
A two-sport athlete with over 40 games of experience at Washington State, Fullington has a shot to make it on the Packers roster. If not, he seems like the type that could at least make the practice squad.
Jake Doughty, ILB, Utah State
A former all-academic player in two conferences, Doughty always knew how to get to the ball. In the past two seasons he also made all-conference, proving to everyone that he could put that intelligence into action.
Jayrone Elliott, OLB, Toledo
A pass-rusher with his hand down at Toledo, Elliott will be playing standing up in Green Bay. With the additions of Julius Peppers, Mike Neal, and Carl Bradford, it would seem unlikely for a pass-rusher to make a roster.
Ryan White, CB, Auburn
A slot or backup cornerback for the majority of his Auburn career, White will need to show his ability to play special teams to make the 2014 team.
James Sims, RB, Kansas
A very productive running back at Kansas, the combine snub comes into Green Bay's camp with a chip on his shoulder. Like Neal, he's talented enough to steal a spot on the roster.
Mike Pennel, NT, Colorado State-Pueblo
A big school-to-small school transfer, Pennel is an interesting body, but he may just be that. Playing the 2013 season a little too large, he lost thirty pounds between his in-season measurements and his combine weigh in.
Justin Perillo, TE, Maine
An all-conference tight end with a basketball background, Perillo has some interesting traits. He'll have to prove to the team that he has more special teams value than Ryan Taylor to make the roster, though.
Carlos Gray, DE, North Carolina State
A surprising early declaration, Gray was a reserve for the majority of his Wolfpack career. With an odd body for a 3-4 end, no one knows exactly where he'll practice at, but you can assume defensive end for now.
Demetruce McNeal, S, West Alabama
After starting for Auburn for two season, McNeal was released due to drug issues. At West Alabama, he continued to start, and he's got some athletic traits that make you wonder if he's a developmental practice-squad type who could make the roster in 2015.
Wilson Van Hooser, WR, Troy
After starting at Tulane, Van Hooser transferred to Troy. At Troy's pro day, he put up some good numbers, and may be able to return kicks and play in the slot.
LaDarius Perkins, RB, Mississippi State
The third productive and talented running back from an AQ school, Perkins too has a shot at making the roster. The smallest, most compact running back in camp, Perkins will have to outplay his size on special teams.
Adrian Hubbard, OLB, Alabama
That this big-time player from a big-time program when undrafted is a bit of a surprise. Hubbard could make the team if Nate Palmer and Co. don't progress enough in camp. According to Al.com, he slipped out of the draft due to an issue with his heart.
Denico Autry, OLB, Mississippi State
A Juco to SEC player, Autry saw significant playing time in his two years at Mississippi State. The pass-rushing linebacker has an uphill battle to make the roster, first having to beat out his fellow UDFAs.