CHARLOTTE – Given JJ Jansen's head injury, the Panthers signed veteran snapper Danny Aiken, who will travel to Dallas for Thursday's game just in case.

"It most certainly is an insurance policy," head coach Ron Rivera said. "Jansen had to go through all the checkups, and we'll see how he is tomorrow morning."

Jansen was a full practice participant on Wednesday and is listed probable.

"I feel good," said Jansen, who did not enter the concussion protocol. "Ready to play tomorrow."

Elsewhere on the injury report, cornerback Charles Tillman (knee) is doubtful and wide receiver Philly Brown (shoulder) is questionable. Both players missed last week's game against Washington and might need another week to recover.

Defensive tackle Dwan Edwards (ankle), wide receiver Ted Ginn, Jr. (knee) and guard Andrew Norwell (hamstring) are probable. Norwell is set to return after missing the previous two games.

Additionally, Rivera said the coaching staff is planning to start Charles Johnson – returning this week from short-term injured reserve – at left defensive end and Jared Allen at right defensive end

"He had a good week of practice," Rivera said of Johnson. "He's running around and ready to roll. We just have to be smart. We can't overuse him."

Rivera was quick to point out that defensive end Kony Ealy, who has started nine of 10 games this season and posted a sack in four straight games, will continue to play a significant role in the rotation.

"He's developing, and this is not going to slow him down. I think this is going to help him," Rivera said. "People have to prepare for not just two quality ends, but three guys that can go out there and make a difference. I'm excited about that."