Skelton back at starting QB for Arizona Cardinals

Lindley, a sixth-round draft pick out of San Diego State, said he understood and respected the decision.

"When you don't perform like that, you don't have much ground to argue on," he said. "I didn't play to where I think I'm capable. John's going to step up and do his thing. I'm going to go to work and be the backup and be there if they need me."

Lindley said he was not losing confidence.

"It was an off day, a perfect storm the way things happened," he said. "It was a rough one but you've got to move on and pick up from there."

He said there were two ways he could react to what has happened.

"You can let it eat you up or you can learn from this," Lindley said. "I'm going to learn from this and move on."

Kolb has missed six games and did not sound optimistic, acknowledging that his condition had not improved over the past two weeks as he practiced on a limited basis.

"When I really push it in the weight room, when I really try to push the ball downfield, that's whenever I'm kind of hitting that wall," he said.

Kolb said that cartilage pieces tore from the upper part of his rib cage and have not returned to their natural position as the injury healed.

"They're laying underneath my sternum now, so that's how they're trying to heal," he said. "Rather than healing where they're butted up straight against it like a normal cracked rib or cracked cartilage when they're flush with each other, mine are laid underneath there. So that's kind of what extends the process."

Kolb said he couldn't answer whether he will play again this season but said he's got to keep pushing "for myself, for my sanity."

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