Moses Itauma vs Filip Hrgovic full undercard fight previews

Moses Itauma vs Filip Hrgovic has nine fantastic fights on the 'Natural Born Thriller' undercard

The Queensberry Promotions main event is a heavyweight world title fight, which is more than enough to get excited about, but the stacked undercard at the O2 Arena on August 29 is equally as thrilling.

There will be 15 British boxers across the 10 bouts on display, as well as a compelling British title fight in the chief support.

It could potentially be an historic night for British boxing if top prospect Moses Itauma could become the second-youngest heavyweight champion in history after Mike Tyson, so the undercard has punctuated this momentous occasion with deeply deserving duels.

Below is a list of every single undercard match, giving fight fans everything they need to know to watch the event in its entirety on DAZN PPV.

Constantin Ursu vs Ben Vaughan

British & Commonwealth welterweight titles

Discovered by Top Tier’s promoter Johnny Clark, Moldovan-born Constantin Ursu, 26 from Plymouth, defends the British welterweight title he won in his last fight with Owen Cooper in Derby in February.

Two of the cards only gave two of the 10 rounds to Cooper, as the rangy, stylish southpaw won the Lonsdale belt unanimously.

Ursu has taken the domestic welterweight scene by storm. Born at the turn of the millennium in the Moldovan capital of Chisinau, he moved to 15-0 last time out when claiming the British and Commonwealth titles with a near punch-perfect performance against Cooper.

The tricky southpaw's maiden defence comes against the dangerous ex-paratrooper Ben 'The Bomber' Vaughan.

At 12-2, both the Northamptonian's narrow defeats were dished out by majority decision in fights he could quite easily have been declared the winner in. His brace of losses came against Josh Taylor's conqueror, Ekow Essuman, and 10-0 Bobby Dalton.

The 27-year-old southpaw from Northampton is a former Midlands Area welterweight champion, who won his last fight in December via first-round knockout.

He’s as game as they come, and he’ll aggressively take the fight to Ursu from the first bell, creating a high tempo right from the off.

It’s a fight that the reigning champion can’t afford to take his eye off the ball in, but history dictates that he won't, as the disciplined Devonian has consistently put in perfect performances to become the champion.

The double title fight provides chief support for a reason as it could certainly be a fight-of-the-night contender for however long it lasts.

ODDS:
1/14 Ursu
11/1 Vaughan
25/1 Draw

Sam Noakes vs Denys Berinchyk

10x3 Lightweight contest

Maidstone's 'Midge' enters into his second contest of 2026 against Ukrainian star Denys Berinchyk.

Now aged 38, the former WBO World lightweight champion's last 13 contests have all been title fights. After 11 consecutive WBO regional title bouts, the Kyiv fighter edged Emanuel Navarrete in May 2024 to claim the WBO World crown. He lost it in his very first defence to rising star Keyshawn Davis nine months later, breaking his heart on Valentine's Day 2025.

His visit to London to face Kent puncher Noakes will be his first appearance in 18 months.

In November 2025, Sam went to war with American Abdullah Mason in Suadi Arabia and just came up short by two rounds on two of the three judges cards at ringside. The British, Commonwealth and European lightweight champion gave it his all in an entertaining back-and-forth battle with the WBO World lightweight title on the line, which the aforementioned Keyshawn Davis was forced to give up after missing weight.

Noakes is currently ranked WBO #4, WBC #5, IBF #10, IBO #12. The bookies believe this fight is closer to call than the chief supporting bout between Ursu and Vaughan.

ODDS:
1/4 Noakes
9/2 Berinchyk
18/1 Draw

Aloys Youmbi vs Mike Perez

10x3 Cruiserweight contest

'The Animal' faces 'The Rebel' in this heavyweight firefight.

Aloys Junior, still just 23-yeards-old, lost his pro debut on points in 2021, but has since adapted and improved to win his next 11 bouts, nine by KO.

In his ninth contest, after scoring seven consecutive KOs, Junior claimed the IBO Continental cruiserweight championship, taken past the fourth round for the first time to unanimous decision victory over 10-rounds.

In the Londoner's next bout, he claimed his first major title - the Commonwealth - needing only three rounds of 12 to claim the crown.

In his last fight, in July 2025, Aloys outpointed fellow south Londoner Ellis Zorro to collect the WBC International cruiserweight belt, his third pro title and counting.

13 months since his last ring outing, the Lewisham puncher faces the dangerous Cuban, Mike Perez, who has double the knockouts that Youmbi has had fights.

'The Rebel' Perez is now 40-years-old, but hasn't lost a fight in nine years. In 2017, he was closely decisioned by Mairis Briedis in their WBC World cruiserweight clash.

A year ago, he won the WBA Inter-Continental cruiserweight title against Brit boxer Steven Ward in Ipswich, shortly before Fabio Wardley came from behind to KO Justis Huni.

In 2011, Perez defeated three heavyweights in one night at the Alexandra Palace in London to win the popular Matchroom series, 'Prizefighter'. The Cuban collected a whopping £32,000 prize fund for that special night.

As an amateur, he had over 400 bouts, and in 2004, he won gold at the World Junior Championships in Jeju City, South Korea.

The Sancti Spíritus southpaw will bring experience and power to the O2 on the last Saturday of August in what will be Junior's toughest test yet.

ODDS:
2/7 Youmbi
10/3 Perez
18/1 Draw

Abnor Jashari vs Numan Hussain

8x3 Super-featherweight

Switzerland's "Kid Dynamite" Abnor Jashari (9-0, 3 KOs) is aiming to reach double figures in his win columns against Camden Town's once-beaten Numan Hussain (8-1-2, 1 KO).

The Londoner is 38 and a former Southern Area super-featherweight champion. Despite drawing to a journeyman in a leisure centre in his fifth fight, Hussain has exceeded expectations to win a Southern Area eliminator by TKO in 2024, but then drew with once-beaten Frank Arnold 95-95 in their 2025 Southern Area championship clash.

In his next fight, four months on, he won the exact same title against another once-beaten boxer, Robert Caswell. He moved up to challenge for the English, but was unanimously decisioned by Ibrahim Nadim, although he won four rounds on one judge's card.

Numan started boxing late, but winning a Southern Area title will be his world title. He boxes behind a Philly Shell with his right hand under his chin and his lead left down by his hip.

The unbeaten Swiss will be occupying the home corner, aiming for hattrick in the UK. Jashari has fought and won at the York Hall in Bethnal Green twice before, firstly in January with a shutout points win over eight rounds, then he was back there in June to win unanimously over 10-rounds against Essex's Marley Mason to win the WBC Greater Turan super-featherweight championship.

It's very likely the visiting European will win his third fight in the London capital to reach 10-0 on his pro record. He is a loose, relaxed fighter behind a medium to high guard, peeking out and constantly looking to counter, very confident and composed.

Even though neither fighter is well-known, this fight will pit a confident counter-puncher against a flashy fighter, guaranteed to entertain.

Tony Curtis vs Nathan Gonzales

6x3 Super-flyweight

Fresh-faced Tony Curtis (13-1, 3 KOs), 20 from Woolwich, London, lost his pro debut on points in Italy in 2022, when he was just a teenager. Since then, he has won all 13 bouts, boxing in Dubai, Abu Dhabi and Thailand until he was old enough to compete in England under the jurisdiction of the BBBofC in 2025.

Trained by Billy Rumbol, Tony Ritchie's UK debut saw him defeat the experienced Charles Tondu in Bournemouth in 2025, then he appeared on the Parker-Wardley undercard later the same year, and his last outing was in Derby in February, sharing the night with Ursu's British title win.

The "Lightning Junior" will face London's Nathan Gonzales (4-0) over six-rounds at super-flyweight.

28-year-old Gonzales-Brown from Acton in West London has won every single one of his 22 professional rounds so far, but he hasn't fought a winning fighter yet and this will be just his second fight in 22 months.

Frankie Wood vs Callum Lee

6x3 Featherweight

Someone's '0' has got to go in this featherweight clash.

Frankie Wood (4-0, 1 KO), 22 from West Ham, has won three four-rounders by shutout and, in his last fight, he scored a KO in his first six-rounder against a 70-fight veteran.

With double the bouts and rounds under his belt, Callum Lee Smith (8-0, 1 KO) is equally willing to test himself and risk his unbeaten record.

From Trowbridge, "Smithy" has won all of his eight contests within his first three years as a pro between March 2022-March 2025, but he hasn't fought in 15 months. Wood has fought three times within that same timeframe giving him the advantage in activity.

Sam King vs Jack Swallow

6x3 Middleweight

Luton's undefeated middleweight Sam King (6-0-1, 1 KO) is approaching three full years in the pro ranks. The 25-year-old debuted in October 2023 and was undefeated in seven bouts two years on. This will be his first fight in 10 months.

He faces a "Mad Dog" in Derbyshire's Jack Swallow (4-12-1, 1 KO) who has fought 10 times this year already. Despite losing his last nine fights, 21-year-old Swallow kicked off 2026 with a win over 12-0 Paddy Lacey in the Liverpool fighter's backyard.

Despite settling into his role as a journeyman, Swallow is still trying to win his fights, so Bedfordshire boxer King will need to shake off the ringrust quickly to get back into his stride if he wants to maintain his unbeaten record.

Zayn Ahmed vs Liam Fitzmaurice

4x3 Super-bantamweight

Slough's Zayn Ahmed (2-0) had a huge scare in his debut last October, dropped in final round of his four-round pro bow at the O2 Arena in London. Despite the decking, the Berkshire boxer won narrowly at 38-37, then learnt from his mistakes to win in January by all four rounds at the York Hall.

The 20-year-old is back at the same setting as his inaugural appearance against his first British opponent in Liam Fitzmaurice (0-18). The 29-year-old journeyman from Lancashire hasn't won a single bout and has been knocked out six times, 33% of his contests ending via stoppage. However, kudos to the road warrior for fighting 18 times in 20 months.

Zayn should win this routine outing in a familiar venue, but Fitzmaurice will be incentivised that Ahmed has been dropped by a fellow journeymen before.

Hassan Ishaq vs Enzo Bahiano Munoz

4x3 Super-bantamweight

From the Lucky Gloves School of Boxing in Slough, Hassan Ishaq (3-0, 3 KOs) has been nicknamed "Shooter" for a reason. None of his three opponents have made it past the third round with him. The super-bantamweight has stopped all three foes, two in the third round and one in the second.

This fourth fight will kickstart his second year in the pro ranks and inevitably he'll be looking to continue his KO streak, but his Argentinian counterpart Enzo Bahiano Munoz (4-16-4, 2 KOs), 23 from Buenos Aires, has only been stopped once in 24 bouts, so could prove to be a tough cookie.