The mixed martial arts world is mourning the sudden death of
Allan
Nascimento.

Nascimento (22-7) was reportedly found unresponsive on Monday, Aug.
3. The
Ultimate Fighting Championship flyweight suffered a heart
attack in his sleep and was pronounced deceased at the scene by
medical responders.

UFC and Chute Boxe pay tribute after flyweight Allan Nascimento
dies at age 34

The UFC posted a condolence message on social media.

“This morning, Monday, Aug. 3, our beloved flyweight fighter, Allan
Nascimento, was found unresponsive after suffering an apparent
heart attack in his sleep. Despite the efforts of the responding
medical team, he was pronounced deceased at the scene. Our thoughts
and deepest condolences are with Allan’s family, friends,
teammates, and loved ones during this incredibly difficult
time.â€

His team,
Chute Boxe, also took to social media to share a message.

“Today, our team loses much more than an athlete; we have lost a
warrior, a friend, a dedicated competitor, and an extraordinary
human being who earned the respect and admiration of all who had
the privilege of knowing him. Allan inspired on and off the mats
with his determination, humility, respect and fighting spirit.â€

Nascimento originally started competing in muay thai in 2008. Due
to his skinny frame, he earned the nickname “Puro Osso,†meaning
skin and bones. Nascimento transitioned to MMA soon after and paid
his dues on the regional circuit for a decade before making his UFC
debut in 2021. The 34-year-old went 4-2 in the UFC and was coming
off a narrow split decision loss against Mitch
Raposo in June.

This morning, Monday, August 3rd, our
beloved flyweight fighter, Allan
Nascimento, was found unresponsive after suffering an apparent
heart attack in his sleep. Despite the efforts of the responding
medical team, he was pronounced deceased at the scene.

Our thoughts and deepest… pic.twitter.com/vlaBaBOyJr

— UFC (@ufc) August
3, 2026

Valter
Walker has two names in mind for his next
Ultimate Fighting Championship heavyweight bout.

The Brazilian submission specialist is hoping to return to action
later this year and is eyeing former title challenger Derrick
Lewis and unbeaten rising contender Josh Hokit
as potential opponents, but prefers one over the other.

Valter Walker wants Derrick Lewis fight after five first-round
submissions

Walker, who has submitted his last five opponents in the first
round, is looking to return to the Octagon in October or November.
In a recent interview, “The Foot Hunter†revealed that he wants to
fight either Lewis or Hokit next.

“I want Derrick Lewis or Josh Hokit,†Walker told MMA Junkie. “I’ll
be ready to fight in October or November. I have in mind these two
guys: Derrick Lewis or Josh Hokit. This is who I want next.â€

Hokit and Lewis squared off at
UFC Freedom 250, where the former emerged victorious.
Nevertheless, Walker believes the latter is a bigger name and wants
to add the UFC knockout record-holder to his record.

“If I could pick, I would pick Derrick Lewis,†Walker added. “I
think for me it’s an interesting fight. He has a big name and a
more big name than Josh Hokit. I think Derrick Lewis has an
interesting name in the game. I watched him when I was young. He
has the record for knocking people out, and I try to make my name
in the game. I think this is a very interesting fight for me.â€

While he's made his preferred matchups clear, Walker remains open
to accepting whatever challenge the promotion offers him next.

“I'm a soldier for the UFC,†Walker concluded. “Whoever the UFC
gives me, I'm happy and I'll agree.â€

Stamp
Fairtex's next bout has been confirmed by One
Championship.

The former three-sport champion will return to action against
Selina Flores in a women's atomweight muay thai bout at
One Fight Night 47 on Sept. 4.

Stamp Fairtex eyes second muay thai win in 2026 at One Fight
Night 47

One Championship announced the matchup on social media, describing
it as a “pivotal†clash between two atomweight contenders.

This fight marks Stamp's third appearance in One Championship since
a two-year stint on the sidelines. She is widely regarded as one of
combat sport's most versatile fighters, winning titles in muay
thai, kickboxing and MMA.

Meanwhile, Flores represents a new challenge for the former
champion. The American enters the matchup looking to establish
herself among the division's top contenders with a win over one of
the promotion's most recognizable fighters.

Elsewhere on the card, Gilbert
Nakatani takes on Nazareth
Lalthazuala in strawweight MMA, Gabriela
Fujimoto squares off against Macarena
Aragon in women's atomweight MMA, Hector
Almonacid locks horns with Pedro
Dantas in featherweight MMA and Rafael
Lovato Jr. faces Pawel Jaworski in a middleweight submission
grappling match. More fights will be announced in the coming
weeks.

One Fight Night 47 takes place on Sept. 4 and will air live on
Prime Video for viewers in the United States and Canada.

All eyes on this 👀 Former three-sport ONE
World Champion Stamp faces American sensation Selina Flores in a
pivotal women’s atomweight Muay Thai clash on September 4 at ONE
Fight Night 47 on Prime Video! 🔥 Who you got?
#ONEFightNight47 | Fri Sep 4 at 9PM ET
🇺🇸🇨🇦 Watch Live on… pic.twitter.com/fP0wYdcJIY

— ONE Championship (@ONEChampionship)
August 4, 2026