GREEN BAY, Wis. (WKBT) -

When the Packers faced the 49ers September 8th in San Francisco, the battle on the gridiron turned into a war of words.

After Clay Matthews hit a 49ers player out of bounds, a little extra-curricular activity ensued. San Francisco coach Jim Harbaugh commented, "If you're going to go to the face, come with some knuckles and not an open slap!"

To avoid losing its fourth straight game to the 49ers, the Packers will have to make sure they don't cross the line this time around.

"We've got to be the bigger man and make the smarter decision at that point," said cornerback Tramon Williams Thursday. "Just throw the first punch and let the second guy get caught," he laughed.

It remains to be seen whether the defense can be physical, yet still keep the action between the whistles.

This is the first time the Packers have faced the same opponent in back-to-back postseasons since facing the 49ers four-straight years, 1995-98.