Manchester – A new force in the heavyweight division made himself known in ruthless fashion on Saturday night as London’s Daniel Dubois demolished Marcus Kelly inside 35 seconds of the opening round at the Manchester Arena.

The 19-year-old, making his professional debut under the guidance of veteran promoter Frank Warren, showed why many insiders have tipped him as Britain’s next heavyweight star. Weighing in at 16st 7lbs, the towering Dubois dwarfed Kelly both in height and physique, the contrast between the two fighters immediately apparent as referee Lee Innes gave final instructions.

When the opening bell rang, Kelly, carrying extra weight around his midriff, attempted to seize the initiative by rushing forward with wide swings. Those efforts found only air. Within moments, Dubois planted a left hand that sent the shorter man stumbling backwards into neutral territory. Smelling opportunity, the Londoner advanced with composure, unleashing heavy body shots that forced Kelly to the canvas.

Kelly rose at the count of nine, but his legs betrayed him. Innes waved off the contest at 0:35 of round one, sparing the Carlisle man from further punishment. Officially, the result goes down as a technical knockout, and with it, Dubois’ professional journey begins with an emphatic first-round finish.

The Manchester crowd, gathered for the Terry Flanagan vs. Petr Petrov card, were left divided. Some felt robbed of a longer contest, while others recognised the sheer destructive power displayed by Dubois. What cannot be disputed is that the young heavyweight barely broke sweat, and questions remain about how much he learned from such a mismatch.

Still, this was the debut Warren had mapped out: a showcase for BT Sport’s maiden boxing broadcast and a chance for the young Londoner to stamp his authority on the big stage. Dubois has already shared sparring sessions with world names such as Tyson Fury and Anthony Joshua, experience which clearly adds to his confidence. His stated ambition is to become the youngest British heavyweight world champion in history, and on the evidence of Saturday night, his campaign has begun in explosive style.

Bigger, tougher nights await, but Daniel Dubois has wasted no time in putting the heavyweight division on notice.