Sam Bradford suffered a left knee injury and will undergo an MRI on Sunday night.

The St. Louis Rams are concerned that the injury is "bad."

"I don't have any information on Sam right now," Rams coach Jeff Fisher said. "We've done X-rays, we'll do an MRI tonight after we land."

Bradford was injured when scrambling toward the sideline in the fourth quarter and landed awkwardly on the knee.

NFL Network's Mike Silver reports that the Rams have discussed signing Tim Tebow, but he does not believe he a deal will actually be reached.