Matt Cassel appeared to be running more briskly in practice Wednesday morning, creating hope Kansas City's No. 1 quarterback might start Sunday against the Oakland Raiders. Coach Todd Haley said Cassel, who injured his left knee in a preseason game Aug. 29 and sat out the season opener at Baltimore, would be listed as questionable. "No. 7 [Cassel], as I felt he would, he moved around a little better than he did at the end of the week," said Haley. "Again, this is going to be an evaluation deal with him. He did not participate in the entire practice, so he'll go on the injury report as questionable today." Cassel's left knee was still braced, but the slight limp he had last week was not evident. "I haven't talked to the doctors. But to my eye, he was improved some from last week," Haley said. "There are medical issues involved when an injury occurs. There are certain times that things take. But the player is doing everything under his power to be ready, which is usually a good thing." Source: Associated Press
The key words here are injury and brace, I doubt wether the coach would play him against a meat grinding D like the Raiders have.