Joseph Parker wins

The mandatory challenger for Joshua's IBF belt delivered a frightening display of hand speed in dispatching the durable Dimitrenko, knocking him down four times in just two-and-a-half rounds.

The New Zealander's right hand landed at will from the first bell - an uppercut stung Dimitrenko (38-3), before a left hook-straight right combination earned the first knock-down.

In the end, it took Parker just four rounds to land the winning blow.

After the fight, Parker said he knew straightaway he was in the ring with a motivated opponent.

"He came and gave it everything he had...he chased me around the ring and tried to land his big shot...I'm confident in what I can do in the ring.

"One piece of advice that Kev [trainer Kevin Barry] gave me in the beginning, when we first started, was in every fight, just stay calm, stay calm under pressure and when you stay calm the shots will come."

After 12 rounds and the toughest test of his career, the New Zealand heavyweight has a guaranteed world title shot after a unanimous points decision over Carlos Takam.