Unless the gorilla is drugged and lamed, or the human fighter is fully armed especially with something like a spear or with a gun that can hold the gorilla off at a distance, the gorilla will kill the human. This means that the Gorillas are stronger than man. This is simply because a male gorilla significantly outweighs most professional fighters.
In addition to the above, the male’s center of gravity is closer to the ground. Wrestlers will appreciate the huge advantage involved erect bipedality is a serious liability here. As if that is not enough a gorilla being a wild animal will throw 100 percent of his available resources into the fight from the very start. Unlike humans however much they are professional fighters or soldiers unless they are in such a state of psychosis that they might as well also be wild animals.
Despite the fact that the gorillas’ fighting responses are instinctual, not trained, they will be faster than humans’ thus being stronger than man. On top of all, the gorillas’ musculature and skeleton are considerably more robust than the human’s meaning that the gorilla will soak up much more punishment before being seriously injured thus making the human fighter hoping to win but later on the gorilla will close with human and knock him off his feet.
A gorilla can reach speeds of 20 mph to 25 mph. In comparison, Usain Bolt’s record in the 100 -meter dash roughly translates into 23 mph. Even though you were Usain Bolt, there’s still a chance of not defeating a gorilla, and this assumes the fight takes place on a race track and not in a forest, where running speed isn’t much of an issue. So now, you have got a gorilla that most likely can catch up to all but the most elite sprinters on the planet.
In conclusion therefore, the average gorilla is approximately 6 to 15 times as strong. All those techniques that we rely on to defeat stronger opponents aren’t going to be enough to overcome that much strength animal. The gorillas will end up by defeating the human.