Steelers quarterback Ben Roethlisberger gritted his way through an ankle injury to lead his team to a 14-3 win over the Browns on Thursday. On Friday, Pittsburgh learned the extent of the damage. An MRI revealed a high left ankle sprain, which The Pittsburgh Post-Gazette described as not being of the most severe, Grade 3. Roethlisberger's agent, Ryan Tollner, told the newspaper that the veteran quarterback has his left foot in a walking boot and "will need rest."