Ben Roethlisberger survived a scare to his lower right leg in Sunday's game when Raheem Brock fell into it, forcing it to cave in during the first half of the Steelers' win over Seattle. "Anytime your knee gets rolled up it's very scary,'' Roethlisberger said. "But the good thing was I didn't feel anything pop. And the doctors examined it and moved the knee around and everything was stable.''