It's currently behind a paywall but I'll draw your attention towards this article in the latest New Yorker anyway. Joan Acocella has a lengthy piece about the upcoming musical 'Rocky', a look behind the fight choreography and a man helping to make it happen, 'movement director' Steven Hoggett. "In Rocky, Hoggett had an additional task. He had to design a fight that, to people not involved in the profession, would look more or less like the real thing. And unlike filmed boxing, where the cameras can do a lot for you, his fight had to look real from right, left, and centre: everywhere the audience would be. Therefore the men did have to hit each other." The whole article is worth seeking out.