Carolina Panthers head coach Ron Rivera, front left, and Houston Texans head coach Gary Kubiak speak before an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Haruki Nakamura (43) and Captain Munnerlyn (41) bring down Houston Texans' Keshawn Martin (82) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Gerry Broome)

Carolina Panthers' Jason Phillips (53) tackles Houston Texans' Ben Tate (44) as Texans' Chris Myers (55) tries to block during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Luke Kuechly, right, hits Houston Texans' Arian Foster (23) who fumbles during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Kealoha Pilares (81) chases Houston Texans' Trindon Holliday (16) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. Holiday scored on the play. (AP Photo/Bob Leverone)

Houston Texans' Trindon Holliday (16) and Bryan Braman (50) celebrate Holliday's touchdown against the Carolina Panthers during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Houston Texans quarterback Matt Schaub (8) prepares to hand off to Arian Foster (23) during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Carolina Panthers quarterback Cam Newton (1) passes against the Houston Texans during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Cam Newton (1) scrambles as teammates Ryan Kalil (67) and Geoff Hangartner (63) block against Houston Texans' Tim Jamison (96) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Replacement officials work the sidelines during the first half of an NFL preseason football game between the Carolina Panthers and the Houston Texans in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Tauren Poole (33), bottom, scores a touchdown against the Houston Texans during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

RETRANSMISSION FOR ALTERNATE CROP - Carolina Panthers' Tauren Poole (33), bottom, scores a touchdown against the Houston Texans during the first half of a NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Kealoha Pilares (81) jumps to avoid Houston Texans' Brice McCain (21) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Carolina Panthers' Tauren Poole (33) runs the ball as Houston Texans' Tim Jamison chases during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers head coach Ron Rivera, center, watches from the sidelines during the first half of an NFL preseason football game against the Houston Texans in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Houston Texans' Troy Nolan (33) reacts following his touchdown against the Carolina Panthers during the second half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers' Jonathan Nelson, right, reaches for Houston Texans' Justin Forsett (28) during the second half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Houston Texans head coach Gary Kubiak reacts during the first half of an NFL preseason football game against the Carolina Panthers in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Carolina Panthers quarterback Derek Anderson (3) scrambles to avoid Houston Texans' Tim Jamison during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Carolina Panthers' Jordan Pugh, bottom left, and Reggie Smith, top left, try to stop Houston Texans' Jonathan Grimes (43) as he scores during the second half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Bob Leverone)

Houston Texans quarterback Matt Schaub (8) scrambles against the Carolina Panthers during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Carolina Panthers' Reggie Smith (31) and R.J. Stanford (25) try to make the tackle against Houston Texans' Juaquin Iglesias (19) during the second half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. Houston won 26-13. (AP Photo/Bob Leverone)

Carolina Panthers head coach Ron Rivera, right, and Houston Texans head coach Gary Kubiak shake hands following an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. Houston won 26-13. (AP Photo/Bob Leverone)