Every year there's typically only one or two undrafted free agents that end up making the 53-man roster out of training camp.

This past year, however, the Packers were particularly good on hitting on their undrafted free agents. Two of them––cornerback Sam Shields and outside linebacker Frank Zombo––played significant roles on the Super Bowl-winning team. And three others––offensive lineman Nick McDonald, running back Dimitri Nance and cornerback Josh Gordy––ended the season on their roster.

Despite the relatively small chances of making the team, the Packers historically sign a dozen or so of them in the immediate aftermath of the draft every year.

It's at this time of year right now that selections would be signed, but because of the NFL lockout and the lack of a collective bargaining agreement, teams are not allowed to sign them.

Teams can and will be allowed to sign them eventually, but when exactly that will be remains to be seen.

The Packers are an interesting case this year. With a team as deep as they've been in the Ted Thompson era for sure––and probably longer than that––there may be room for fewer undrafted free agents than ever before.

There are currently 85 players listed on the Packers' roster, although only 61 of them are under contract. Of the 24 players not under contract, 10 of them are part of the newly selected draft class of 2011 and 14 of them are free agents.

The roster limit is 80 players, but they only count toward that number if they're actually signed to a contract. Technically the Packers sign as many as 19 undrafted free agents to get from 61 to 80, although the CBA will complicate matters.

Usually free agency precedes the draft, so teams have a better idea of how many players they'll sign.

But because of the unique labor situation this year, both vested free agents and undrafted free agents will likely be able to be signed at the same time. Once the Packers reach the 80-man limit they'll need to cut a player just to sign a player.

Seeing as there are currently 85 players on the roster and assuming they'll sign all ten of their draft choices, that means the Packers mathematically could not sign at least five of their current free agents.

It's probably safe in assuming the Packers won't even attempt to sign a few of their free agents––cornerback Josh Bell and linebacker Matt Wilhelm among them.

And there's always the chance the Packers cut a few of the players currently under contract. Typically some of those signed to futures contracts––frequently those on last year's practice squad––are prime candidates.

Even with all these possibilities and circumstances, there still may not be as much room as usual for the undrafted types.

With all that taken into effect, here's a look at some of the players who went undrafted free agents this past weekend, and a ranking of the positions most likely to be addressed with undrafted free agency given that the Packers may not sign as many as their usual dozen or so guys coming out of college.

• Outside linebacker––As a position of perceived need that wasn't addressed until the sixth round with the selection of Ricky Elmore, it seems likely the Packers would sign at least one player to be given a shot as an outside linebacker. One option would be NCAA Division II career sacks leader, defensive end Marc Schiechl of the Colorado School of Mines who the Packers saw at his pro day and also brought him in for a visit.
• Defensive line––Similar to the situation at outside linebacker, defensive line appears to be a need with Cullen Jenkins being a free agent and Johnny Jolly currently suspended. The Packers drafted Lawrence Guy in the seventh round, but he can't exactly be locked into a roster spot at this point. A player to keep an eye upon is Cedric Thornton of Southern Arkansas who is said to be a close comparison to Jenkins.
• Quarterback––Apart from safety, quarterback was the only position the Packers didn't draft a player at this past weekend. If they're comfortable with Graham Harrell as their third quarterback and Randall Cobb as an emergency option, maybe the Packers won't sign anyone at all. But if they do, Wisconsin's Scott Tolzien would make sense. Mike McCarthy met with him personally at the Badgers' pro day.
• Kicker––Because Mason Crosby is a free agent, it can't be assumed he'll return to Green Bay––even though it's probably likely. And even if Crosby does sign, the uncertainty at the position would probably be attractive to an undrafted college player free to sign with any team he chooses. With only one kicker drafted this past weekend, the Packers should be able to get one of the better ones like Kai Forbath of UCLA.
• Offensive line––The sheer number of offensive lineman needed makes it likely the Packers will sign at least one. Without a lot of experience at center behind Scott Wells, that could be a position to watch. Some of the better centers are Rimington Award winner Jake Kirkpatrick of TCU and Syracuse center Ryan Bartholomew who ran the second-fastest 40 time among all offensive lineman at the Combine. New Mexico's Byron Bell makes sense as a tackle.
• Wide receiver––There's always a need for pass catchers at training camp. One that can provide return experience would be especially valuable in case Cobb gets hurt. Terrence Tolliver of LSU would appear to be the cream of the crop. He doesn't seem to fit the mold of a Packers wide receiver, but his talent is hard to pass up. There was interest in Jamel Hamler of Fresno State and Lester Jean of Florida Atlantic at their pro days.
• Fullback––Both John Kuhn and Korey Hall are free agents and Quinn Johnson isn't a sure thing. With how much value the Packers place in their fullbacks, it makes sense that the best remaining fullbacks would want to sign with Green Bay. Henry Hynoski may be the best remaining one.
• Safety––Because the Packers didn't draft a safety, they may sign one. It's hard to believe DeAndre McDaniel of Clemson didn't get drafted after being so productive in college. Joe Lefeged of Rutgers has return experience.
• Running back––With the selection of Alex Green in the third round, there's not a huge need for a running back. If they do sign one, it's worth noting that the Packers were one of the only teams present at the pro day of Issac Odim of the University of Minnesota-Duluth.
• Cornerback––Again, not a pressing need, but Sam Shields' former teammate at the University of Miami, Ryan Hill, could be a candidate.
• Inside linebacker––It's a position with decent depth already on the Packers, but Boston College's Mark Herzlich is worth taking a chance on. He figures to be one of the most highly sought after players in undrafted free agency.
• Tight end––Tight end was one of the deepest positions on the Packer to begin with, plus they took two more in the draft. The Packers would always bring in some players for tryouts following the draft. That may or may not happen because of the CBA, but if it does Virginia's Joe Torchia could be a candidate. The Packers worked him out previously.