The MGM Grand Garden Arena in Las Vegas played host to one of the most significant nights in the history of the super lightweight division when Kostya Tszyu and Zab Judah met to decide boxing’s first undisputed champion at 140 pounds in more than three decades. With the WBA, WBC and IBF titles at stake, this long-anticipated unification bout delivered drama, controversy and a decisive ending that ensured its place in the sport’s folklore.

Both men arrived in Nevada in peak form. Tszyu entered as the established force, already holding two of the major belts and coming off a disciplined unanimous decision win over Germany’s Oktay Urkal earlier in the year, a performance that underlined his ring intelligence and patience. Judah, unbeaten and brimming with confidence, had made a far louder statement in his previous outing by stopping Allan Vester inside three rounds to retain the IBF crown, showcasing speed and sharp finishing instincts.

From the opening bell, it was clear this was a clash of styles. Judah’s quick feet and southpaw stance allowed him to dictate the early exchanges. In the first round, his sharp counters and fast combinations caught Tszyu cold more than once, forcing the Australian-based champion to tie up and weather the storm. Ringside observers largely agreed the early momentum belonged to the Brooklyn man, whose movement and timing unsettled Tszyu.

The complexion of the contest shifted rapidly in the second. Judah became more cautious, choosing to circle and jab rather than press his advantage. Tszyu, sensing the change, began to take control of the centre of the ring. His pressure increased, his punches found range, and the bout turned from a battle of speed into a test of composure.

With only seconds remaining in the round, the defining moment arrived. Tszyu landed a clean right hand as Judah retreated, immediately following it with another that sent the American crashing to the canvas. Judah rose quickly but was unsteady, stumbling forward and losing balance once more. Referee Jay Nady, judging that Judah was unable to properly defend himself, waved the fight off just before the bell, awarding Tszyu a technical knockout victory.

The stoppage sparked chaotic scenes. Judah vehemently protested the decision, directing his anger towards the referee and requiring restraint from his corner and security personnel. The incident later resulted in disciplinary action from the Nevada State Athletic Commission, but it did little to overshadow the achievement in the opposite corner.

For Tszyu, the win cemented his legacy. By unifying the division, he became the first man since 1968 to fully rule the super lightweight ranks, doing so with a single, perfectly timed punch after navigating early adversity. Judah was left to reflect on a fight that slipped away in an instant, having shown flashes of brilliance before the sudden ending.

In the end, history will record that Kostya Tszyu rose from a difficult start to stop Zab Judah and claim every major belt the division had to offer, a decisive conclusion to one of boxing’s most important championship nights.