what happens when people only want to see robots doing boxing?
In some of the Isamov writings robots had become the most HATED minority for the most part.
I do not envision a time in which Robot boxing would be popular. I think it is the idea that people can see themselves as being represented by a boxer that gives many people their interest in the sport. It is a contest between competing wills and skills.
With Robots, you wouldn't have that. Besides, they would be capable of moving too fast to really see much of the fight. It might be a novelty for awhile, but I don't see such a thing lingering.