Joseph Parker's result against Derek Chisora could be the key to unlocking another world title tilt for the Kiwi heavyweight, according to promoter Eddie Hearn.
Parker, 29, faces off against 37-year-old Chisora on Sunday morning (NZ time), as the Kiwi looks to cement himself back among the world's heavyweight elite.
Since his WBO heavyweight title reign ended in March 2018, Parker's stocks have fallen in global boxing standards.
Back-to-back defeats against Anthony Joshua and Dillian Whyte have seen Parker's name fall down the pecking order of heavyweight contenders, leapfrogged by the likes of unbeaten Oleksandr Usyk.
But according to Matchroom Boxing promoter Hearn, victory against Chisora in Manchester would catapult Parker back into contention to earn another world title shot.
"Good win for Joseph last time out against [Junior] Fa," Hearn says. "A little bit scrappy, but he's been out for a long time.
"This is really the fight that's going to tell us more about Joseph Parker. If you look at his positioning now, in the world rankings, if he wins this fight, he's bang in line for a world championship fight.
"Massive fight for both guys. It could be the final roll of the dice for Derek Chisora, and a defeat for Parker would be crippling for his world title ambitions."
Hearn also labelled Parker's decision to split with longtime trainer Kevin Barry as a "great move," with Sunday's fight being the first alongside new coach, Irishman Andy Lee.
"I like Kevin Barry and those guys... but sometimes you need something a little bit fresh," Hearn adds.
"Joe looks great, almost too lean for me. But obviously Andy wants him built for speed in this fight. Andy's got a great boxing brain, I think he's a fantastic trainer, and sometimes you just need to freshen things up.
"I'm expecting a very good Joseph Parker."
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