Found this pretty funny.  If you read the bottom line on both players, it basically says that Roby is small and weak while Dennard is strong and strapping.  Now look at their height, weight, etc.  Whatever.

http://www.nfl.com/combine/profiles/darqueze-dennard?id=2543474

http://www.nfl.com/combine/profiles/bradley-roby?id=2543505