The Arizona Cardinals no longer remain unbeaten: the St. Louis Rams took home the victory on Oct. 4, 17-3.

Before Thursday's game, the Rams were 2-2 and the Cardinals were 4-0. The defeat shocked many, since fans thought the unbeaten team with never have a downfall against the Rams.

"Those guys played outstanding," Sam Bradford said. "They've played great all year and they have kept us in a lot of games."

Bradford opened the game with a touchdown pass to Lance Hendricks. He then  made a 51-yard touchdown pass to Chris Givens for a two-TD cushion, and Robert Quinn had three of the Rams' nine sacks on Kevin Kolb.

"We believe in ourselves," Quinn said. "We believe we can be one of the great defenses. When there was a play to be made, we made it."

The Rams also had a strong game last week, in a 19-13 victory against Seattle, Their defensive line has made their a force to be reckoned with: Arizona was stopped twice in the 20 in the final minutes and they also limited the Cardinals to 45 yards rushing on 17 carries. Kolb then got his helmet knocked off twice on hits, once after he reportedly got hit in the jaw.

Click here to watch highlights of the game, courtesy of ESPN.