Joshua can 'easily' outbox Tua but he really has to concentrate for 3 minutes a round, for 12 rounds. He's been tagged by big left hooks in the past, so he needs to keep tight defense here. Tua has a very good puncher's chance here, but Joshua would be the favourite.
Joshua wins comfortably on the cards. Tua just is not good enough at this level. I guess Tua has the power to have the proverbial punchers chance, but I don’t see it as the likely outcome. I think he lacks the quickness, speed and explosiveness necessary to pull off what Ruiz did in the first encounter Joshua 8-4 9-3 type of decision if Joshua is at his best
Depends how Joshua approaches the fight. Goes for the KO, then he gets stopped. Tries to outbox Tua and I think he beats David on points fairly comfortably.
Tua was much better than Ruiz imo. If Joshua charges in recklessly as he did against Ruiz, he gets KTFO.