Pittsburgh Steelers quarterback Ben Roethlisberger (7) gets sacked by San Francisco 49ers linebacker Aldon Smith (99) and Ray McDonald (not seen) in the fourth quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)

Photo by: Marcio Jose Sanchez

Pittsburgh Steelers quarterback Ben Roethlisberger (7) gets sacked by San Francisco 49ers linebacker Aldon Smith (99) and Ray McDonald (not seen) in the fourth quarter of an NFL football game against the Pittsburgh Steelers in San Francisco, Monday, Dec. 19, 2011. (AP Photo/Marcio Jose Sanchez)