Navajo Stirling Had Three Weeks’ Notice. He Only Needed Three Minutes.
Navajo Stirling was still unpacking from a holiday in Japan when his phone rang with the biggest offer of his career. Jan Blachowicz, a former UFC light heavyweight champion, needed an opponent for UFC Belgrade on short notice. Stirling said yes before he’d finished unpacking.
A Result Worth Watching From Home
He finished Blachowicz by TKO inside the first round in Serbia, a result few would have backed against a 43-year-old with only two knockout losses in 42 professional bouts before that night. The win pushed Stirling to 11-0 as a professional, unbeaten since he first stepped into a cage.
New Zealand fans following that run from home don’t have to look far. Gambling.com, which offers guides to the best online casino sites in NZ as well as sportsbooks, is where a lot of that audience is already checking odds and offers as Stirling’s stock keeps climbing.
He wasn’t shy about what comes next either. “If Rountree or Paulo Costa want a fight before the year ends, you know who to call,” Stirling said after the bout, naming two ranked names most fighters his experience level wouldn’t call out this early.
A Teammate Already Sits on the Throne
The gamble made sense once you knew where Stirling trains. He’s part of Auckland City Kickboxing, the gym that produced Carlos Ulberg, the man currently holding the UFC light heavyweight title. Sherdog’s coverage of UFC 327 recorded Ulberg finishing former champion Jiri Prochazka inside the first round to win the vacant belt, a result that pushed him to 15-1 with ten straight wins, nearly all of them finishes.
One ACK fighter already owns the belt at 205 pounds. Another just got hand-picked to fight a former champion in Europe with less than a month to prepare. That’s not a coincidence a gym can manufacture through hype. It’s a training room producing results two names deep in the same weight class, and it’s the kind of pattern that gets a small country’s combat sports scene taken seriously on a bigger stage.
Two Fighters, One Gym, One Weight Class
With Ulberg holding the belt and Stirling now sitting unbeaten with a statement win over a former champion, the division has a genuine cluster forming around one Auckland gym rather than one standout fighter riding a hot streak. That’s a different kind of story than a single breakout run, and it’s why people outside combat sports circles have started paying attention to what’s happening in those training rooms.
New Zealand has produced individual UFC names before, but rarely two live threats stacked in the same weight class at the same time. Most countries with a genuine claim on a UFC division get there through one fighter carrying the flag alone for years. Auckland City Kickboxing is doing it with a champion and an unbeaten short-notice replacement inside the same twelve months.
Whether that translates into a home card in Auckland or a title defence built around an all-ACK matchup is still speculation. What isn’t speculation is the form both fighters are showing right now, one holding gold, the other calling out ranked names on the back of a short-notice statement win.
What Stirling’s Win Actually Changes
A short-notice TKO win over a former champion doesn’t hand Stirling a title shot by itself, but it does something a decision win couldn’t: it puts him in the conversation with ranked names, which is exactly the response he gave once the fight ended. Combine that with Ulberg’s reign at the top of the division and Auckland City Kickboxing now has more leverage in one weight class than most countries manage across their entire roster of UFC fighters.
New Zealand’s combat sports scene has produced flashes before without sustaining them. This time there are two names doing it at once, in the same gym, in the same division, within the same calendar year. That’s harder to write off as a fluke.
We’ll keep tracking how the light heavyweight picture develops in our MMA section as both fighters chase their next fights.


