Tua is cryptonite stylistically for Haye. Haye likes to punch long and wide and Tua's relatively subtle head movement although a far cry from his best would negate a lot of his punching. He could take what Haye could land, and Haye simply could not take what Tua has to offer in return. Tua still has his speed and his power, Haye's defense is too leaky and reliant on reflexes to keep Tua out for long.