In fact,it happened 30 years ago and was capped by Phil Simms all time Super Bowl performance. It's happened 12 out of 19 times when division foes have met for a third time,and I was kind of surprised it was that high. PS. My buddy and I were at that 49-3 thrashing the Giants put on the Niners, and I'll never forget the hit Jim Burt put on Montana, that knocked him out of the game. https://en.wikipedia.org/wiki/1986_New_York_Giants_season#Regular_season