As a team with a tricky salary cap situation for the next few years, the Panthers are as open as anyone to the possibility of some undrafted rookies making the roster.
They announced the signing of 13 of them Tuesday, with the possibility a few have a good chance to make it.
Alabama safety Robert Lester may have the best chance, a starter for national championship teams whose 40 times pushed his tock down.
Their other signings included: Louisiana Tech quarterback Colby Cameron, Rice tight end Taylor Cook, Sam Houston State wide receiver Trey Diller, Southern Cal defensive end Wes Horton, South Carolina linebacker Damario Jeffery, East Carolina guard Robert Jones, Abilene Christian kicker Morgan Lineberry, Jacksonville State guard Tori Mobley, Michigan defensive end Craig Roh, Oklahoma defensive tackle Casey Walker, Louisiana-Lafayette cornerback Melvin White and Penn State fullback Mike Zordich.
They also signed former Oregon tight end Brandon Williams, who only played two games there after he was shut down by doctors because of a spinal condition.