This rivalry has always been defined by defense. NFL rules have changed it a little, opening up the passing game and cutting down on helmet-to-helmet hits, but these semiannual grudge matches are typically tight, low-scoring games, often decided by big defensive plays. That will be the case again Sunday, with one defense flipping the game on its ear by scoring a touchdown. Will it be a forced fumble or an interception taken back to the house? My crystal ball is a little cloudy on that, but I do see a player with long, bushy black hair hanging out down his back being prominently involved.