Diogo Reis Defends Gold Against Bebeto Oliveira, Selina Flores Faces Kana Morimoto At ONE Fight Night 50
· Yahoo Sports
The final U.S. primetime card of ONE Championship’s 2026 calendar, ONE Fight Night 50 on Prime Video, has been bolstered by two explosive additions.
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An all-Brazilian showdown awaits as ONE Flyweight Submission Grappling World Champion Diogo “Baby Shark” Reis defends his gold against multi-time BJJ World Champion Bebeto Oliveira, while Selina “Teep Queen” Flores trades blows with Kana “Krusher Queen” Morimoto in atomweight Muay Thai.
The card goes down on Friday, December 18, inside Bangkok’s legendary Lumpinee Stadium. Here is a closer look at both battles.
Reis Faces A Decorated Newcomer In His First Defense
Photo Credit: ONE ChampionshipDiogo Reis climbed to the top of ONE’s flyweight grappling division in only his second promotional outing, and now the reigning World Champion has a statement to make in his first defense.
The two-time ADCC World Champion opened his tenure in the organization with a kimura finish of Shoya Ishiguro before following up with a stellar 10-minute display against Daiki Yonekura to claim the ONE Flyweight Submission Grappling World Title.
Those performances earned him ONE’s 2025 Submission Grappler of the Year honor, and this past May he backed it up with another masterclass as he moved up to bantamweight against Yuki Takahashi, going 3-0 on the global stage.
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Bebeto Oliveira, though, has creativity and polish to match. The promotional debutant holds World Championship gold in both gi and no-gi competition and has beaten fellow IBJJF World Champions Edwin Ocasio, Paulo Miyao, and Thalison Soares.
The matchup comes down to who controls the rhythm. “Baby Shark” wants a fast match, chaining passes into finishes, while the 32-year-old challenger is at his most dangerous when things slow down and the action sinks into his guard, where sweeps and submissions can flip the pace on even the quickest passer.
Keep the exchanges moving, and Reis’ arsenal could stack up fast. Slow the match down, and Oliveira could wrap up his 2026 as the new face of the flyweight submission grappling division.
Flores Looks To Spoil Kana’s Muay Thai Debut
Photo Credit: ONE ChampionshipMulti-time WBC Muay Thai World Champion Selina Flores arrived in ONE on a four-fight winning streak and stretched it to five with an impressive triumph over Marie “The Celtic Queen” McManamon in her promotional debut in October 2025.
The 28-year-old’s second outing was a leap in competition, and she met it head-on. At ONE Fight Night 47 this past September, the American striker pushed former three-sport ONE World Champion Stamp Fairtex through three full rounds before losing a split decision.
Her WBC titles already suggested she belongs among the best at atomweight, and taking Stamp to the scorecards in only her second promotional appearance backed that up. Now she is fired up to return to the win column, and she gets to put that standing to the test against Kana at ONE Fight Night 50.
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The 34-year-old Kana, a former K-1 Champion, has firepower of her own. She makes her Muay Thai debut after trading wins and losses in her last six kickboxing appearances under the ONE spotlight – a stretch that includes victories over Moa Carlsson and Stamp.
She bounced back this past August with a win over Yu Yau Pui, and now she carries that punching power into the unforgiving realm of 4-ounce-gloves Muay Thai.
Ideally, Flores would want to keep the Team Aftermath star at the end of her range and trademark teeps, while winning the exchanges with volume. Kana, on the other hand, wants to close the gap and land the shots that made her a threat in kickboxing, now with elbows, knees, and the clinch in play.