Brian Cushing understands how difficult it is to be on the receiving end of a hit that causes a season-ending injury.

As a defensive player he also has the opposite perspective.

I asked Cushing today if he's ever delivered a hit that caused a season-ending injury to another player and he said he didn't think he did. But what followed was a thoughtful dissection of the issue that bubbled up again after Texans rookie D.J. Swearinger delivered a legal but season-ending hit to Dolphins tight end Dustin Keller.

"It’s the nature of the game that we play in" Cushing said. "It’s a very physical sport."

Cushing noted that players in the league are getting "bigger faster stronger" which might increase the chance of serious injuries even when a hit is completely legal.

Cushing who suffered a torn ACL in October was asked if he thinks the league's emphasis on not hitting high will lead to more lower body injuries.