You can never tell anymore. The bottom half of those cups could be filled with surplus Reebok Pump bladders.

Also, Josh Boyd failed his physical.

According to the NFL transaction wire, Boyd failed his physical, which means the Packers felt he was not healthy enough to take part in any of the football activities they had scheduled. They have not commented on the condition of his injury.
http://www.jsonline.com/blogs/sports/378705821.html