Blood, guts and the NFC West in prime time

This is the new NFC West: bloody, low-scoring, dangerous to the health.

The St. Louis Rams hold a 10-3 halftime lead over the Arizona Cardinals in the Edward Jones Dome.

Cardinals quarterback Kevin Kolb has a bloody mouth after taking a helmet to the head from the Rams' Kendall Langford. The hit did not appear dirty. It did appear to hurt. Medical personnel checked out Kolb's jaw on the sideline following the drive.

The Rams have lost receiver Danny Amendola to a shoulder injury. Amendola landed hard on his shoulder while attempting to make a diving grab.

Losing Amendola severely weakens the Rams' offense. Amendola's one-handed grab of a deep ball against Patrick Peterson sent an early message the Rams were going to play aggressively -- not just on defense, but on offense, too.

Kolb rallied Arizona from a 13-0 halftime deficit a week ago after taking eight sacks. He's taken four so far.

The Cardinals beat the Rams by scores of 19-13 and 23-20 last season. This one appears likely to be close as well.