I see everyone is talking about bruce's fighting skills and strength...
I have read from quite a few good sources, which quote bruce's few and close friends, about his feats of strength and speed.
He could, according to these friends, pick up a 70 pound dumbbell and roll it over his forearms and lift it laterally, and hold it there for a good few seconds. this was all done slowly. He could also do push ups with 250 pounds on his back.
He would demolish punching bags. His had to be made extra heavy.
He could jump 8 feet high. And I have seen from his movies that he is a very good acrobat, and very fast.
He has been measured with a device that measured his punching speed. hundredths of a second. very fast.
Maybe he has not been in many real fights, but I would assume that he has practiced in some pretty vicious fake fights among some pretty good fighters.
I would not say he overtrained to the point of physical peril. According to the majority of sources, he trained 3 times a week and ate a lot.
He did not train for mass, but for power. His famous "one inch punch" where he could punch a man 15 feet, was his power. He was more focused on strengthening the tendons and ligaments, I believe.
In my opinion, I do not think the numerous MMA fighters today would be able to compete against bruce very well. They all appear very slow and sluggish, their strikes almost meaningless. Just slapping around until they can grab and hold each other in a lock forever. Bruce had amazing speed, and explosive power. The MMA are slow, and I see so many areas where they could be attacked, but the other fighter is just as slow and cumbersome....