St. Louis Rams linebacker Chris Chamberlain, left, breaks up a pass intended for Kansas City Chiefs wide receiver Dwayne Bowe during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

Kansas City Chiefs quarterback Matt Cassel throws during the first quarter of an NFL football game against the St. Louis Rams, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Tom Gannam)

St. Louis Rams running back Steven Jackson, center, struggles for a two-yard gain before being brought down by Kansas City Chiefs linebacker Derrick Johnson, left, and linebacker Mike Vrabel (50) during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams running back Steven Jackson runs for a 13-yard gain during the first quarter of an NFL football game against the Kansas City Chiefs, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams cornerback Kevin Dockery intercepts a pass intended for Kansas City Chiefs tight end Tony Moeaki, right, as Chiefs wide receiver Dwayne Bowe, left, looks on during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams place kicker Josh Brown celebrates after making a 52-yard field goal during the first quarter of an NFL football game against the Kansas City Chiefs, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Seth Perlman)

St. Louis Rams running back Steven Jackson, left, runs for a three-yard gain as Rams offensive tackle Jason Smith, center, blocks Kansas City Chiefs defensive tackle Shaun Smith, right, during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Seth Perlman)

Kansas City Chiefs running back Thomas Jones (20) runs for a one-yard gain as teammate Barry Richardson (67) blocks St. Louis Rams defensive end Chris Long, left, during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams cornerback Ronald Bartell pumps up the crowd between plays during the first quarter of an NFL football game against the Kansas City Chiefs, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams quarterback Sam Bradford throws during the first quarter of an NFL football game against the Kansas City Chiefs, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)

St. Louis Rams quarterback Sam Bradford (8) drops back to pass during the first quarter of an NFL football game against the Kansas City Chiefs, Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Tom Gannam)

St. Louis Rams cornerback Kevin Dockery (35) intercepts a pass intended for Kansas City Chiefs tight end Tony Moeaki, right, as Chiefs wide receiver Dwayne Bowe, left, looks on during the first quarter of an NFL football game Sunday, Dec. 19, 2010, in St. Louis. (AP Photo/Jeff Roberson)