"Cam Newton isn't the only rookie who will draw close attention in the Panthers' season opener Sunday at Arizona.

Defensive tackles Terrell McClain and Sione Fua will share interior duties with Andre Neblett at a position that has been a point of concern through the preseason. The Panthers brought in Marcus Harrison earlier in the week to help at the position but he failed his physical, leaving the team with two rookies among its three defensive tackles.

"We kind of got thrown into the fire," Fua said. "We've made a lot of strides in a lot of different areas. I feel like the last two games we've gotten better push up front and we've just got to keep making strides.""