WR Johnson out again for Texans
Johnson will be sidelined for the eighth time this season. He missed six straight games earlier with a more severe injury to his right hamstring.
Cornerback Darius Butler (concussion), receiver Seyi Ajirotutu and kicker Adi Kunalic are among the inactive players for Carolina. The Panthers signed Kunalic this week after Olindo Mare missed a 36-yard kick in the fourth quarter of last week's loss to Atlanta.