
Nathan Jones and Tom Mullen settle their rivalry, a former UFC fighter chases championship gold and four featherweights move one step closer to a £25,000 prize as FightStar Championship returns to London this weekend.
FSC 37 takes place at Indigo at The O2 on Sunday, August 23, with three title fights at the heart of one of the promotion's biggest cards of the year.
The main event pits the experienced Jones against one of British MMA's most in-form fighters in Mullen, who arrives on a seven-fight winning streak and looking to leave London with the welterweight championship.
Former UFC light heavyweight Ihor Potieria provides another major attraction as he faces Cally Gibrainn de Oliveira for gold, while Muhidin Abubakar, the UK's top-ranked flyweight, meets dangerous Brazilian Ronaldo Oliveira in the night's third title fight.
There is serious money at stake too, with FSC 37 hosting the semi-finals of FightStar's four-man featherweight tournament as the remaining contenders chase a place in the final and the chance to claim a £25,000 prize.
And for the first time, fight fans around the world can watch it all on DAZN.
FSC 37 marks FightStar Championship's debut on the platform and will be shown live and free worldwide from 7pm BST.
Here is everything you need to know about FSC 37, including the biggest fights, full card, start time and how to watch FightStar Championship live and free on DAZN.
There is championship gold on the line when Nathan 'Mr. Bag & Tag' Jones and Tom Mullen meet in Sunday's main event.
Jones is one of the most experienced and recognisable fighters on the British MMA circuit and brings a 17-12 professional record into FSC 37.
But Mullen arrives with serious momentum.
The 11-2 contender has won seven consecutive fights ahead of his championship opportunity, establishing himself as one of the most dangerous threats in the division.
That sets up an intriguing contrast in London: Jones' experience against a challenger who has forgotten what it feels like to lose.
There is also an edge to the matchup.
The pair have already gone face-to-face ahead of the event, with both making clear that their meeting is personal as well as an opportunity to determine the welterweight champion.
Something has to give when they finally enter the cage on Sunday.
UFC fans may recognise one of the biggest names competing at FSC 37.
Former UFC light heavyweight Ihor 'The Duelist' Potieria faces Cally Gibrainn de Oliveira, with the FSC light heavyweight championship on the line.
Potieria brings a 20-8 professional record and significant international experience into his FightStar appearance.
The Ukrainian competed seven times inside the UFC Octagon and owns a notable victory over former UFC light heavyweight champion Maurício 'Shogun' Rua.
He now faces a very different challenge in London.
De Oliveira enters with a 6-2 record and has the opportunity to claim the biggest scalp of his career by defeating an opponent with extensive UFC experience.
One of Britain's leading MMA talents will also compete for championship gold.
Muhidin 'The Captain' Abubakar faces Brazil's Ronaldo 'Carrasco' Oliveira in the third title fight at FSC 37.
Abubakar enters the contest with an impressive 12-1 professional record and is the UK's top-ranked flyweight.
That record has established him as one of the country's most closely watched talents, but Oliveira provides an experienced international test.
The Brazilian brings an 11-5-1 record into London and poses a particular threat with his submission game.
For Abubakar, another victory would further strengthen his reputation as one of the leading fighters on the British MMA scene.
Championship belts are not the only prize being chased at The O2.
FSC 37 will also stage the semi-finals of FightStar Championship's four-man featherweight tournament.
Four fighters remain in contention for a place in the final and, ultimately, the chance to claim the £25,000 prize.
That adds a completely different dynamic to Sunday's card.
There is no championship belt required to understand the stakes: win and the pursuit of £25,000 continues. Lose and the opportunity disappears.
By the end of FSC 37, only two fighters will remain in contention for the prize.
FSC 37 takes place on Sunday, August 23, 2026 at Indigo at The O2 in London.
Date: Sunday, August 23
Venue: Indigo at The O2, London
Start time: 7pm BST
FightStar Championship makes its DAZN debut with FSC 37 on Sunday, August 23.
The event will be shown live and free worldwide on DAZN from 7pm BST as part of the new global broadcast partnership between FightStar Championship and DAZN.
Fans can watch FSC 37 for free by signing up for a DAZN account.
Once signed in, simply search for 'MMA' or 'FightStar Championship' and select FSC 37 to access the live event.
DAZN is available on a range of devices, including smart TVs, smartphones, tablets, games consoles and web browsers.


