Jack,

I'd seriously really have to think about the top 10 defensive players in history but off the top of my head I'll throw in LT and Lott. Butkus comes to mind. I could rattle off way more than 10 so I'd have to prioritize. Lewis is definitely one of the greatest defensive players ever but I think I was saying greatest football players ever, but again, I'd have to go back and actually quantify that one.