NEW ORLEANS -- The San Francisco 49ers had to overcome a 24-14 halftime deficit to beat the Atlanta Falcons in the NFC Championship Game. They'll need to overcome a 21-6 deficit against the Baltimore Ravens to win Super Bowl XLVII.Baltimore is playing a much cleaner, more efficient game than the 49ers are playing to this point.The Ravens have one penalty and zero turnovers. The 49ers have committed three penalties and two turnovers. One of those penalties killed the 49ers' opening drive, wiping out a 20-yard reception.