Chung, who practiced in a limited capacity on Wednesday, said on Thursday he felt good, yet wasn't in a position to declare himself active for Sunday at Oakland.
"That's coach's decision, trainers' decision. I don't make those decisions. I'm just going to make sure I'm ready to go," said Chung, sporting a cast. "Hurt, injured, you have to always prepare mentally, physically, whatever you have to do to make sure that you know what you're doing so if coach needs you to go in there, you're ready."
"He's fast, he has a good stiff arm, he's strong, he breaks tackles, he's a good running back," he said. "He can take it the distance. I've seen him run 80-yard runs like nothing.
"He's definitely fast, he's explosive, he's a good player."
Copyright 2011 by The Associated Press