Why this game is intriguing: The Titans looked like they were on their way to being one of the league's biggest disappointments, both before last week's game against the Lions and then again at the end of regulation. Tennessee did end up winning in overtime, setting off some offensive fireworks in the process. Maybe there is hope after all, as second-year quarterback Jake Locker is beginning to show more consistency. Sunday's test looms large. With little fanfare, when we weren't even looking, the Texans became one of the NFL's best teams.
What to watch: The game should be a duel of two of the NFL's most productive running backs. But, it isn't. Arian Foster is still leading the multi-faceted Houston offense with 98 yards per game, and he'll give Tennessee some problems. But Titans RB Chris Johnson doesn't have 98 yards for the season. First running back to find consistent real estate will create big plays for his offense. The Texans, though, have a weapon against all things offense. J.J. Watt -- can we just call him J.J. Swat on first reference? -- is coming into his own in Year 2, and a shaky Titans offensive line will have its hands full.