Joe Louis Knocks Down Buddy Baer with a short trip hammer overhand right that makes him do a 360 degree spin: https://streamable.com/kxx8i For this one, the HD clip of the KD only came in live action speed. I couldn't perform the 'super' slow mo effect as in the Braddock clip because of this. However, I was able to do a normal slow mo effect. Thus, this is by far the best footage you will see of this KD in slow motion (that I'm aware of), despite the warping issues.
When you see a fighters legs taken away like that and seeing the way they fall, it’s amazing how more of them didn’t suffer serous knee and ankle injuries.
If Wilder or AJ hit a similar sized super heavy with a shot that had that effect, they'd be crowned the god of ATG punchers. But since Louis did it in 1941 in black and white and Buddy Baer isn't "modern" it doesn't count