We like this video for a few reasons; first, it is a classic example of what a sparring match looked like before electronic scoring. The referee's job was much more difficult. They needed to maintain the ring while watching and listening for points to be scored (notice that each player raises their hand when they think they have earned a point). Second, when you watch the fight with the second opponent, you can see that he has let his emotions control his actions, this impedes his ability to react strategically.
https://www.youtube.com/watch?v=sGjd5vQfnEo