Devin Haney vs George Kambosos Jr., becomes the undisputed lightweight champion

Devin Haney became the undisputed lightweight champion Sunday 

Marvel Stadium in Melbourne, Australia, with a unanimous-decision victory over George Kambosos on ESPN.

Haney (28-0, 15 KOs) used his excellent jab to dictate the pace en route to the win

titles after the dominant performance against ESPN's No. 1 lightweight.

Kambosos, a 28-year-old from Sydney, Australia, can choose to exercise his contractual

Official scorecards: 116-112, 116-112 and 118-110.

Close round as Kambosos makes one final push, but it's a formality. Haney too sharp, too good. He wins the final round and the fight.

Haney uses the jab to contend with the hard-charging Kambosos, who lands a few solid shots, but Haney makes him pay this time when he misses.

George Kambosos continues to press forward in an attempt to land one big shot.