He was deceptive. He looked slow and upright but just kept coming and stalking. His stamina was incredible and he got stringer as the fight progressed. He is an ATG.

Here he is against Napoles: http://www.youtube.com/watch?v=KQ2B0gXIiRk

and against Benvenuti: http://www.youtube.com/watch?v=gXivXNvb780