Houston Texans running back Arian Foster (23) is tackled by Cincinnati Bengals free safety Reggie Nelson (20) during the second quarter of an NFL wild card playoff football game Saturday, Jan. 5, 2013, in Houston. Cincinnati Bengals strong safety Nate Clements is underneath Foster. (AP Photo/Eric Gay)

Photo by: Eric Gay

Houston Texans running back Arian Foster (23) is tackled by Cincinnati Bengals free safety Reggie Nelson (20) during the second quarter of an NFL wild card playoff football game Saturday, Jan. 5, 2013, in Houston. Cincinnati Bengals strong safety Nate Clements is underneath Foster. (AP Photo/Eric Gay)