Maybe the fabled Bigfoot is a branch of Erectus or even Neanderthal? If it exists, it would be some kind of Homo species.
I believe it would go back to a branch perhaps before these guys. I've read about the Neanderthals having bones that look like those of rodeo riders, rough life. They did have spears and those spear thrower things though.
Average height for a neanderthal was about five feet and they did not have access to steroids or modern weight training facilities. Against a modern NFL lineman, they'd lose.