The Jacksonville Jaguars and the Pittsburgh Steelers face off in Week 1 of the NFL preseason today. Here's where to watch and start time.

The defensive tackle position is one where four or five players can see steady playing time on a weekly basis. When healthy, we know that Arik Armstead, DaVon Hamilton, and Maason Smith will command three of those spots in the rotation. But who can earn the fourth and how consistent can that player be?