We were told by guides at the site that the captain of the WINNING team would be beheaded and is was a great honor.
I remember I was explained that game when I was in school, but my memories were that the whole losing team was beheaded. I remember so clearly how hard seemed to get the ball through the circle just by using elbows, knees, feet and head.
Now let's discuss a little the point. Logic says that it is no wonder their civilization perished, because the strong, good ones were beheaded while the losers were allowed to survive -kinda what happens at wartime-
On the other hand, the same logic says that those who were smarter would try NOT to win, and survive, and therefore, the best ones would survive. That would make a civilization of smart people, not sport-oriented people.