George Kambosos Jr. called Devin Haney a “rat” and an “informant” as the couple came face to face for the first time in Australia.
The two will fight on June 5 at Marvel Stadium with the winner to become the undisputed world lightweight champion.
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Haney arrived in Australia last week but his father and head coach Bill was unable to make the trip due to visa issues stemming from a 1992 federal drug conviction for which he served time.
Instead, he will be cornered by Yoel Judah, the father of former two-weight world champion Zab.
Kambosos Jr. was vocal in the build and swore to be a living “nightmare” for Haney, nicknamed “The Dream”.
The verbal war escalated further at the first official fight week event, with Kambosos revealing that Haney had messaged him about the inside details of Teofimo Lopez’s camp ahead of the Aussie’s battle with him last November.
“This guy is an informant,” Kambosos said.
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“This guy is a rat. Teofimo Lopez is fighting a stranger, he was messaging me. He was telling me all the details.
“Teo at the hookah lounge, Teo has issues with his wife. This is a rat. He’s an informant.
“You know what, Sunday I’m going to whip your ass. And you know when you get back to Las Vegas, you gotta watch out for Teofimo Lopez, because he’s gonna get you too.
Kambosos also insisted that if Haney or even the public didn’t believe him, he would release the messages.
It wouldn’t be the first time Haney had been around Kambosos in some capacity.
After his historic win over Lopez, Kambosos released footage of Haney and his dad, Bill, celebrating the result.
However, Haney thought Kambosos’ verbal beatings were merely an act.
“When is the act going to stop,” Haney said.
“We can see through. Be yourself, that’s all you have to do. Be you. You act.
Kambosos replied, “I’d rather be an actor than a rat.”