Titans defensive end Dave Ball says he briefly considered retirement after his latest concussion two weeks ago against Cincinnati. Ball returned to practice Friday, but won't play against the Falcons on Sunday because of his third concussion the past two seasons. His season ended after 11 games last year due to a concussion. "I thought of that," he said of retiring. "But I'm not at that point yet. It would take a couple of more hard knocks before they can knock D. Ball out of there, right?" Ball said he is improving, and both he and the Titans expect he should be on track to play Nov. 27 against Tampa Bay.