San Francisco coach Jim Harbaugh (left) and Detroit counterpart Jim Schwartz exchange heated words following the game. Harbaugh (below) exults in the 49ers' 25-19 win that knocked the Lions from the ranks of the unbeaten. (Associated Press)

San Francisco coach Jim Harbaugh (left) and Detroit counterpart Jim Schwartz exchange heated words following the game. Harbaugh (below) exults in the 49ers' 25-19 win that knocked the Lions from the ranks of the unbeaten. (Associated Press)