Sam Bradford is back to wearing a walking boot on his left ankle, the latest setback for the St. Louis Rams quarterback.

Bradford played in Monday’s 30-13 loss at Seattle and has experienced pain since then, according to Jim Thomas of the St. Louis Post-Dispatch. There are no plans to place him on injured reserve yet, but newcomer Kellen Clemens could very well be the starting quarterback on Sunday when the Rams host the Cincinnati Bengals.

“I will say that it is becoming more and more frustrating to go out there and play, and then after the game feel like I've been set back,” Bradford said. “When I came back the first time (after the original injury) I was able to make it through those first three or four games without going backwards. It got better each week. It wasn't sore after the game.

“The past two games I've gone out there, I feel like we've gone backwards. That is a bit frustrating, but in my opinion as long as it's good to go, as soon as it feels right, I want to be out there with my team trying to help them win.”

Now, Bradford faces a short week to get ready for the game coming out of the Monday night loss. Clemens was claimed off waivers from the Houston Texans just last week, and he is working to learn the offense as quickly as he can.

It’s not an ideal situation and nothing has been ideal for the Rams this season.

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Brad Biggs covers the Bears for the Chicago Tribune