Hard to judge Povetkin, Fury & AJ are top class heavys. AJ landed his power on a badly hurt Whyte and Fury & Povetki totally blind sided him with a beautiful setup
Franklin is throwing feather dusters so Whyte probably wouldn't be rocked too much although a combo of them could result in a canvas nap.
That uppercut did some serious long term damage. A textbook example of technique & clean and full impact if I ever did see one.
Even though Whyte is passed it there is a big difference between landing that shot on a club fighter compared to a world rated heavyweight like Whyte. Also the uppercuts that have destroyed Whyte were thrown by hard punching well schooled elite heavyweights.