Joshua has been fighting guys who are slow and lack punch selection. Which is kind of normal in the HW division. Hes probably never seen a guy with that type of speed and punch selection before. Ruiz had LHW speed and punch variety last night. Defense is a lot easier when you are defending against stiff 1-2 every single fight.
Saw this training video of Andy Ruiz earlier, he’s actually very agile for somebody so big - something you rarely see, he’s unique.