Prepare for a close one.
The 49ers first opened as one-point favorites and are now sitting at 2.5 heading into tonight's game. The odds did not open until a couple days ago due to oddsmakers' concern over Pittsburgh Steelers' quarterback Ben Roethlisberger's injury.
Known as arguably the toughest quarterback in the league, Roethlisberger sprained his left ankle during a 14-3 win over the Cleveland Browns on Dec. 8 and practiced for the first time on Friday, though he was limited. But Steelers coach Mike Tomlin has said that if Roethlisberger is healthy enough to play, he'll play.
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