George Kambosos Jr. turned heads around the boxing world with a sensational upset victory over Teofimo Lopez, with Manny Pacquiao among those to share praise for Australia’s newest world titleholder.

The split-decision victory, which saw Kambosos crowned IBF, WBO, WBA and The Ring lightweight world champion, has even been discussed as Australia’s greatest boxing performance on the world stage.

Faced with heavy odds and a New York crowd in Lopez’s favor, Kambosos rode his way to victory by weathering an early storm from his superstar American opponent before exploding in the middle rounds to win over the judges, who awarded a 115-111, 115-113, 113-114 victory.

“I believed in myself, I backed myself,” Kambosos said postfight.

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“I thought, ‘I’m going to hit him hard and put him down,’ and the fight changed off that. . . . I’m an unbelievable boxer. I can’t believe how good I boxed.”

“My defense, my movement; too sharp, too fast, too strong. My conditioning and my stamina were unbelievable.

“I got excited too much, I got caught. But you know what? What a warrior. I got back up against all odds and still finished the fight and won the next round.”

Kambosos' warrior-like performance against the odds stunned many and had some of the biggest names in the game showing him praise.

While Kambosos won over the boxing world with his victory, Lopez’s reaction also caused quite the stir. The defeated defending champion sensationally claimed after the fight that he won the 12-round fight “10-2.”

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“He’s a hell of a fighter, but I won tonight, everybody knows that,” Lopez said to a backdrop of heavy booing from the local crowd inside the Hulu Theater at Madison Square Garden.

“The referee raised my hand. I won tonight, I don’t care what anybody says, yo, I won tonight. At the end of the day, I’ve been here, I done that, I want to thank God, I want to thank everybody that came out tonight. Look, I ain’t no sore loser, I take my wins like I take my losses.”