1. Whether the roof's open or not at Reliant Stadium, the sky will officially fall in Houston next Monday if the Texans can't beat a Peyton Manning-less Colts team at home in Week 1. If No. 18 does indeed miss the first regular season game of his 14-year NFL career, there would never be a bigger, more pressurized must-win in league history than the one Houston would face on Sunday. Let the gray-bearded Kerry Collins and Co. come in and embarrass the home team, and Gary Kubiak's Texans may never recover.