More shotgun for Steelers?

Steelers coach Mike Tomlin said he expects Ben Roethlisberger to play Sunday against the Titans. But there's still a question of how the sprained left foot will affect the starting quarterback.

The Steelers rely on the shotgun a lot already, running 41.3 percent of their offense out of that formation. That percentage could increase Sunday because Pittsburgh might want to limit Roethlisberger's movement on that foot.

Out of the shotgun this year, Roethlisberger has completed 57.8 percent of his passes, throwing one touchdown and three interceptions. His average yard per attempt is 8.3.

According to ESPN.com injury expert Stephania Bell, how this injury affects Roethlisberger's game depends on where the sprain is. It could be difficult for him to push off the front foot when throwing.

"If it's in the midfoot, this is a region of stress transfer for the foot so when you step down and push off, load has to go through mid foot," Bell said. "If swollen and painful, makes it difficult to do. Any twisting, pivoting increases shear, makes it harder. So I think it, at the very least, makes him less mobile."

Roethlisberger hurt his foot in a 17-10 loss at Houston. He remained in the game although he was limping on the final drive. Roethlisberger wore a walking boot leaving the stadium Sunday.

“Ben had his foot x-rayed, MRI, thankfully nothing is broken,” Tomlin said. “It is a sprain. It may limit him at the early portions of the week. We anticipate him being able to participate in this football game.”