Former Texans defensive lineman N.D. Kalu previews matchup against Titans

The Texans' matchup against the Titans on Sunday is going to come down to what goes on in the trenches.

So there's no one better to preview the game than esteemed former Texans defensive lineman N.D. Kalu, who joined In The Loop this week to do just that.

What are potential pitfalls for Texans against Titans? In The Loop has ideas