After a decisive points victory over Australian George Kambosos on Sunday, American boxer Devin Haney retained his WBC lightweight title and added three more from the weight class.

The 23-year-old American won three of the opening four rounds and was far in front at the midway stage of the 12-round fight to claim the lightweight title for the first time.

Haney won the fight by scores of 116-112, 116-112, and 118-110.

Haney now has a 28-0 record with 15 KOs after proving to be the better technical fighter in front of a crowd of 41,129 at Melbourne's covered Marvel Stadium.

"I was at ease," Haney said, "just keeping to the game plan." "The strategy was to hit while avoiding being hit. I put up a good, intelligent fight. With either of his best shots, he couldn't hit me."

Haney lauded Kambosos, who was fighting in his native Australia for the first time in five years.

"I bow down to him; he's a great warrior." "I remained a gentleman even when he became impolite," Haney stated. "A lot of these 'champions' wouldn't give me a chance, but George did."

Before the bout, Kambosos, 28, held the WBO, WBA, and IBF lightweight titles, which now belong to Haney.

Kambosos' unblemished pro career record has come to an end, as he now has a record of 20-1 with 10 KOs. When Kambosos defeated Teofimo Lopez in 2019, he won all three of his world titles.