Kambosos Jr vows to 'shock the world' | Haney: I'm levels above him

George Kambosos Jr has vowed he will stun the boxing world again when he faces Devin Haney in Sunday's undisputed lightweight title showdown in Melbourne, live on Sky Sports.

Australia's WBA Super, IBF and WBO world champion is aiming to add Haney's WBC belt to his collection. In doing so, he would become the division's first undisputed champion since Pernell Whitaker in 1990 and the first of the four-belt era.

Although a split-decision win over the previously unbeaten Teofimo Lopez in New York last November saw him claim those three straps, Kambosos Jr remains the underdog with the bookmakers. That, however, just serves to motivate the 28-year-old to prove the naysayers wrong.

"I love the underdog status, it's okay," Kambosos Jr said. "They've been against me my whole career, they've been saying that my whole career, so I'm still the top dog and after Sunday I will remain the top dog.

"It has been a long, hard journey, everyone knows that, but I'm ready for Sunday. All those moments have got me ready for Sunday and I will shock the world again. Underdog? Beautiful - we are ready.

"I've been through it all so whatever comes to the table on Sunday, we are prepared."

Friday's final press conference ahead of the clash at Marvel Stadium was a much more subdued affair compared to their meeting earlier in the week when Kambosos Jr branded Haney "a rat" and "an informant", accusing him of dishing dirt to him on fellow American Lopez ahead of last year's fight.

Kambosos Jr (20-10)-0) cut a more stern, focused figure this time around rather than trying to stoke the fires even more, insisting he will do his talking in the ring on Sunday.

"I'm just having fun, enjoying the moment and talking the truth," Kambosos Jr said of his