Brian Cushing believes teammate J.J. Watt could go down as the best defensive player in NFL history.

"The things that he's going to be able to accomplish are unbelievable," Cushing told ESPN.com's John Clayton last week on the "Inside The Huddle" podcast. "When you talk about the potential that he has of really being the greatest defensive player ever, he could be."

Watt had an extraordinary season in 2012 and was named Defensive Player of the Year.