Blachowicz now faces Navajo Stirling at UFC Belgrade after Guskov’s re-routing
The 10-0 City Kickboxing prospect steps in for Bogdan Guskov, who was pulled to Abu Dhabi against Ankalaev. Six weeks off his last fight, Stirling walks into the biggest test of his career.

The light heavyweight division reshuffled itself over the weekend, and Navajo Stirling ended up with the toughest assignment of his career.
Stirling, undefeated at 10-0, now faces former champion Jan Blachowicz in the co-main event of UFC Belgrade on August 1. The booking was confirmed after Bogdan Guskov, originally slated to fight Blachowicz, was pulled to face Magomed Ankalaev at UFC Abu Dhabi. That opening existed because Khalil Rountree Jr. withdrew from the Ankalaev fight with an injury.
One domino, three fights rearranged.
For Stirling, the turnaround is aggressive by any standard. He stopped Ion Cutelaba by TKO on June 20, meaning he will walk into Belgrade Arena roughly six weeks after his last fight, against an opponent ranked among the division’s top ten at 205 pounds. Blachowicz (29-11-2) held the light heavyweight title in 2020 and 2021 and remains one of the division’s most experienced operators.
The City Kickboxing product has built his 10-0 record without facing anyone in Blachowicz’s tier. That is the nature of prospect matchmaking. It is also what makes short-notice call-ups the fastest way to compress a career timeline. One yes, and the rankings conversation starts immediately.
Blachowicz, for his part, gets a stylistic unknown instead of the pressure-heavy Guskov. Stirling is a longer, kickboxing-oriented fighter out of Auckland’s most decorated gym, which has produced Israel Adesanya, Alexander Volkanovski, and Dan Hooker, among others. Whether six weeks is enough time to overhaul a game plan for a debuting top-tier opponent is the question Blachowicz’s camp is now working through. The former champion had earlier attempted to accept the short-notice Ankalaev fight but confirmed his willingness to make weight too late for the promotion to book him. Belgrade was already on his calendar. The opponent change is the only variable he had to absorb.
UFC Belgrade is the promotion’s first event in Serbia, held at the 18,000-seat Belgrade Arena. The Balkans have been a steady pipeline of talent into the UFC roster over the past decade without ever hosting a card, so the debut has been a while coming. Local interest around the event has centred on the heavyweight and light heavyweight sections of the card, which is where Blachowicz, a Polish veteran with a regional following, slots in cleanly.
For Stirling, the math is simple enough. Beat a former champion and the ranked-contender label attaches itself immediately. Lose competitively to a top-ten veteran on short notice and the developmental arc barely dents. The only bad outcome is a one-sided finish, and that risk is the price of admission for the fight he took.
The main event and full card details for UFC Belgrade continue to be finalised in the lead-up to fight week. Stirling’s team at City Kickboxing confirmed the booking through social media on July 17. Blachowicz has not publicly commented on the opponent change at the time of writing.
What happens if Stirling wins is the more interesting hypothetical. The light heavyweight title picture is currently unsettled, with Alex Pereira having vacated the belt to move to heavyweight and Ankalaev’s July 25 fight against Guskov the most immediate ranked bout on the calendar. The contender queue is being sorted in real time. An undefeated 10-0 finisher with a name-value scalp on his record is exactly the kind of profile matchmakers reach for when the pool starts looking familiar. Stirling has one Saturday night to make that argument.


