This Friday at the UFC Apex in Las Vegas, Callum Walsh steps into the spotlight as the face of a bold new chapter in combat sports. The 24-year-old Irish light-middleweight will headline the first-ever event staged by Zuffa Boxing, the long-rumoured boxing venture backed by UFC president Dana White and Saudi investment.
For Walsh, the moment feels less like a gamble and more like a natural next step.
Dana White’s First Boxing Standard-Bearer
Walsh’s rise has unfolded largely within the UFC ecosystem. He has fought most of his professional bouts on UFC Fight Pass, often with White personally backing him, making him an obvious choice to front the new promotion.
“I’ve always been around the UFC, so this felt natural,” Walsh said. “Dana saw the mindset and the skills I had and felt I was the right guy to represent the boxing side.”
That familiarity will carry into Friday’s low-key debut, held without fans during UFC 324 fight week. Walsh takes on experienced Mexican fighter Carlos Ocampo, tasked with setting the tone for Zuffa Boxing’s future.
A Long Road from Ireland to Los Angeles
Walsh’s journey has been anything but smooth. Once a promising amateur with Olympic ambitions, his plans were derailed by the Covid-19 pandemic. At the time, he was working seven days a week on a fishing boat in Ireland, a job he says sharpened his resolve.
When boxing stalled, Walsh packed up and moved to Los Angeles, walking straight into Freddie Roach’s famous Wild Card gym. Life was tough. He slept on couches, made no money, crashed his car and went two years without returning home while sorting out his visa.
“There were so many moments I thought about quitting,” he said. “But that fishing job showed me the reality of life. I didn’t want to go back.”
He turned professional at 20, signed with promoter Tom Loeffler and soon found himself on UFC Fight Pass. Last September, he even landed a co-main event slot on the blockbuster Canelo Alvarez v Terence Crawford card, a sign of how fast his profile was growing.
Zuffa Boxing and a Shifting Landscape
Walsh’s close ties to White are now formalised under Zuffa Boxing, a project that has sparked excitement and unease in equal measure. The UFC’s tightly controlled business model clashes with long-standing boxing regulations, particularly the Muhammad Ali Boxing Reform Act, which limits exclusive contracts and bans promotions from creating their own world titles.
White and parent company TKO are pushing for legal changes, raising fears among critics that fighters could lose bargaining power. Walsh, however, is unconcerned.
“I don’t deal with politics,” he said. “Dana’s been with me my whole career. If he’s starting a boxing organisation, I’m in.”
White has made it clear he wants Zuffa Boxing belts to rival the traditional world titles, alongside the Ring Magazine belt. While the structure remains uncertain, Walsh is focused on what’s next.
“I plan to be a Zuffa Boxing champion,” he said. “In 12 months, I think this will have some of the biggest names in the sport.”
For Walsh, Friday isn’t just another fight. It’s the start of a new era — for him and, potentially, for boxing itself.
