Sam Bradford is quickly getting a grasp of the offense being installed by the St. Louis Rams, one he is more comfortable with than last year’s Josh McDaniels’ version.

But one thing he can’t shake yet is soreness in his ankle that was badly sprained last season. According to Kathleen Nelson of the St. Louis Post-Dispatch, Bradford is still battling the injury more than seven months later.

Originally, Bradford suffered a high-ankle sprain on Oct. 16. It knocked him out of six games, and he went through an offseason rehabilitation process that carried through March. He’s still not all the way there.

“It's getting there," Bradford said. "It seems to feel better every week. There's less soreness, more things I can do. I think it's definitely on the right track."

It’s just soreness and the belief has to be Bradford will be 100 percent before training camp gets going. Coach Jeff Fisher says about 70 percent of the offense has been installed, so everyone is making progress.

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Brad Biggs covers the Bears for the Chicago Tribune