GREEN BAY -- For the first time in his four-year tenure as the Green Bay Packers' general manager, Ted Thompson did not tweak his so-called "final" roster on the day after the cutdown to the NFL-mandated 53-player limit.

But that doesn't mean the roster is set. Without a long-snapper on the payroll after rookie J.J. Jansen was placed on season-ending injured reserve with a knee injury, one of the 53 players who made it through the final roster reduction Saturday will have to go.

The Packers were not awarded anyone on waivers following Saturday's league-wide cuts. Thompson said the team didn't even put a waiver claim in on anyone -- including long-snapper Thomas Gafford, whom the Packers released Aug. 3 and the Chicago Bears released Saturday.

"I think our core group has progressed far enough along that barring some injuries or something, we felt pretty good about being able to pick and choose from our group," Thompson said. "It wasn't that there weren't some people that we'd be interested in. It's just that, (if) you claim them, you have to cut somebody else, and we weren't really that eager to do that."

That said, the Packers will have to cut someone to add a long-snapper, since Thompson acknowledged there's no one on the roster who can serve as long-snapper in the Sept. 8 regular-season opener against Minnesota.

Backup lineman Tony Moll was the emergency snapper after Jansen was injured against the Titans, and defensive tackle Johnny Jolly is currently listed as the long-snapper on the unofficial depth chart, even though he was horrible on the handful of snaps he did during camp. Player programs director Rob Davis, the Packers' snapper from 1997 through 2007, is ineligible to join the team as a player because of the league's "stockpiling" rule.

"We're working on it," Thompson said.

While Thompson wouldn't say so, the Packers auditioned several long-snappers Sunday, a league source confirmed. Thompson also hinted another long-snapper or two could be in for tryouts today.

Among the available snappers are Tim Bugg, an undrafted rookie from Indiana who was with the Cincinnati Bengals earlier this offseason; Ryan Senser, an undrafted rookie from Ohio who was with the New Orleans Saints during the offseason and for part of training camp; and Brett Goode, who played in college at Arkansas and was on the Jacksonville Jaguars' offseason roster the past two seasons.

Thompson said Jansen's knee injury, which he suffered on a high snap to punter Jon Ryan late in Thursday night's preseason finale against Tennessee, was severe enough he would have been out "a fair number of weeks and months."

Asked if Jansen would have been the Packers' snapper had he not sustained the injury, Thompson said yes. "I was happy with him. He had made our team."

Once Jansen's replacement is signed, the Packers will have to make a corresponding roster move. Among those in danger of being released are rookie right tackle Breno Giacomini, safety Charlie Peprah, linebacker Tracy White and cornerback Jarrett Bush.

Giacomini struggled mightily in the preseason finale against the Titans; Peprah missed most of camp with a hamstring injury; White is the seventh linebacker on the roster; and Bush had coverage problems in several preseason games. Peprah, White and Bush are all core special teams players.

The fact Thompson didn't claim a single player from another team was a surprise. Each of the past three seasons, he made several moves after the final cuts.

Last year, halfback Noah Herron was initially kept on the active roster but was later placed on injured reserve when fullback John Kuhn was claimed off waivers. The Packers also traded for halfback Ryan Grant on cutdown day, sending a sixth-round pick to the New York Giants.

In 2006, Thompson cut to 51 players -- two below the maximum -- then claimed Bush, Peprah and guard Tony Palmer on waivers. Cornerback Jason Horton was cut to make room for the third waiver-wire addition.

And in Thompson's first year of 2005, he signed free agent tight end Donald Lee, who'd been released by Miami and cleared waivers, and promoted fullback Vonta Leach from the practice squad. To make room, he released tight end Ben Steele and running back Nick Luchey.

"That's part of the process," Thompson said. "You juggle things around, you take something from here, you add something here, and you just kind of have to figure it out as you go."