Stevie McKenna knocks out Owen O'Neill in 45 seconds

Stevie McKenna floored Owen O’Neill in the first round of their Zuffa Boxing 10 super-lightweight bout with a single right hand that left O’Neill sprawled and unable to beat the referee’s count. The referee waved off the contest 45 seconds into the opening stanza after McKenna dropped O’Neill twice inside the first minute—first with a sharp jab that wobbled him, then with a clean overhand right that sent him flat on his back. Ringside footage showed O’Neill’s legs lift off the canvas after the second impact, prompting McKenna to shout “Took him off both his feet!”

McKenna, a 27-year-old Glaswegian with a 12-0-1 record and six knockouts, entered the bout as a late replacement for an injured opponent and looked every inch the elite-level prospect many pundits already claim him to be. O’Neill, 24 and 10-2-1, had been on a three-fight winning streak and carried a reputation for fast starts, making the early stoppage a statement moment. McKenna’s camp had targeted a knockout finish after watching O’Neill absorb body shots in sparring; the fight plan was simple—establish early pressure, look for the single shot that finishes. It worked.

Promoter Eddie Hearn confirmed the result within minutes, calling it “one of the most violent knockouts we’ve seen at this level.” McKenna’s trainer, Kenny Logan, said his charge “saw the opening and took it—no wasted motion.” O’Neill, who had already been dropped in the first round of his last outing, has now been stopped in back-to-back fights and will likely need a long layoff to rebuild confidence. McKenna, meanwhile, is being lined up for a British title eliminator in the autumn, with whispers of a potential world-title shot if he keeps winning by stoppage.

What happens next is a rapid rise up the rankings. McKenna’s next fight is expected to be broadcast on Sky Sports Boxing in October, with a mandatory challenger spot for the British title on the line. O’Neill faces a crossroads—retire, rebuild, or chase another big-name opponent despite the back-to-back KO losses. Either way, McKenna’s one-punch demolition has positioned him as the division’s next must-watch fighter.