Wide receiver D.J. Hackett was back on the field Wednesday after missing the last two days with a minor knee problem. Hackett continues to work as the No. 3 receiver for the Panthers behind apparent starters Steve Smith and Muhsin Muhammad.

   "It swelled up on me, but nothing is hurt," Hackett said.

   Hackett, who spent his last four seasons with the Seattle Seahawks, said he's picking up Carolina's offensive scheme pretty well.

   "Everything is going good," Hackett said. "I'm figuring everything out with the offense, the timing and everything. I think things are going good."

   --Landon Johnson continues to work behind starting outside linebackers Na'il Diggs and Thomas Davis, which is a bit of a surprise considering the Panthers gave him a three-year, $10 million contract this off-season. That's considerably less than what Diggs received last December as part of a three-year contract extension.