The NFL hasn’t seen a rivalry quite like the one the Seahawks and 49ers shared last decade. While they are still bitter division rivals, the animosity and the competition were on another level between these two when Jim Harbaugh and Pete Carroll were roaming the sidelines while Marshawn Lynch and Frank Gore were crashing into equally-lethal defensive fronts. The games were always close and intensely physical, the sobering sound of each tackle echoing an era of more brutal football.
