Blizzards for the NFL, I imagine, though I don't know NFL history. And there have to be MLB playoffs that have been interrupted by tropical storms, etc, in the past. With baseball though, you just play twice a day to make it up. Other than that, doubtful. I love how this rivalry is already heated up before we've even played game 1. You can't tell me this isn't the best rivalry in the league. This will be a historic bone of contention for whoever loses.