From classroom discipline to corner commands: The unlikely journey of a part-time educator who delivered one of the year’s biggest upsets.
MANCHESTER — In a sporting upset that defies the conventional trajectory of professional boxing, 28-year-old supply teacher Zak Chelli delivered a blistering knockout victory over Cuba’s two-time world champion, David Morrell, in Manchester last Saturday. The fight, which Chelli accepted just two weeks prior as a late replacement for the injured Callum Smith, saw him overcome a scorecard deficit to stop Morrell in the 10th and final round.
Morrell, who had previously suffered his only career loss to David Benavidez, held the advantage on the scorecards before Chelli landed a decisive right hand in the ninth round that hurt the Cuban veteran. The momentum shifted completely in the final round, prompting referee intervention to rescue Morrell. Chelli, known to his pupils simply as “Mr. Chelli,” later remarked that he had accomplished what even Benavidez could not manage.
The narrative of a working-class educator defeating an elite global contender echoes the fictional Rocky saga, though Chelli’s path to the ring was grounded in the realities of modern life. Unlike the fictional Balboa training in a slaughterhouse, Chelli balanced his preparation with a full-time teaching schedule, often training for four hours with his father and trainer, Zak Sr., after school hours. His preparation was further complicated by a pre-booked family holiday to Tunisia; his flights were scheduled for the day after the bout.
Chelli’s dual life as an educator and fighter has provided him with a unique psychological toolkit. He draws a direct parallel between managing a classroom of unruly students and the mental fortitude required to face an opponent in the ring.
“My mistake when I first became a teacher was that I was always happy,” Chelli admitted. “Never smile when you’re a supply teacher because the kids will rip you a new one. You’ve got to let them know you’re going to be in charge.” He noted that the “fight mask” a boxer wears is identical to the firm, steady demeanor required to command a classroom.
The motivation to fight was driven not just by ambition, but by necessity. Following a loss to Callum Simpson two years prior, Chelli had earned no income from boxing. “I needed it, not for myself, but for my wife and daughter,” he said, noting the financial strain on his family. “Even if I’m there with one arm or one leg I’m going to give it everything.”
Chelli’s strategy in the ring was calculated. Despite trailing, he recognized early that Morrell was failing to land his jab. Following his father’s shouts from the corner to “unleash the right hand” and “give him the pain,” Chelli capitalized on Morrell’s defensive lapses. “I was catching him with my right hand and I heard the commentator saying: ‘Why is he stepping back?’” Chelli recalled. “He’s stepping back because I hurt him.”
The victory has thrust Chelli into the spotlight, with his social media profile garnering 1.2 million views and thousands of messages. Yet, his immediate future remains anchored in the education sector. He holds a degree in business management and has taught everything from GCSE to A-levels, a role he intends to maintain alongside his boxing career. His wife, who works in marketing for Chelsea Football Club, supports a schedule that allows him to teach three days a week and train the rest.
While Chelli hopes to face Callum Smith in a future bout and eventually claim a world title, he remains wary of the chaos fame brings to his teaching environment. As a supply teacher who moves between schools, he often relies on anonymity, joking that he may soon have to introduce himself as “Mr. Jones.”
“I just hope it’s not going to be hectic,” Chelli said regarding his return to the classroom, grinning at the thought of his students recognizing him. “If it’s chilled and I can teach then I’ll be happy.”
For now, the supply teacher has delivered a lesson in resilience that resonates far beyond the gym or the classroom.
