This sounds unbelievable but I am glad there is video evidence. In a fight between grandpa and a vibrant young boxer one would conclude that the result is obvious. In this case it is not that obvious as the old man beats a young boxer in the ring.
Forget the height and age advantage grandpa completely schools the kid on how to throw punches. This old man is really impressive for his age and boy can he throw some deadly punches. Enjoy the video.