Kevin Vallejos Tkos Seungwoo Choi in debut

Kevin Vallejos showed why in his Octagon debut against Seungwoo Choi at UFC Fight Night 254 gives a hype for his name.

After Vallejos (15-1 MMA, 1-0 UFC) received a UFC contract for Dana White's competitive series, he made a big first impression when he injured Choi (11-6 MMA, 4-5 UFC) with a massive impact and then raved to TKO on 3:09. Round 1.

The 23-year-old was advertised as a rust promise, and his performance was a strong opening speech for his UFC career. Take a look at the repetition of the interruption below (via X):

The massive right leads to the finish for Kevin Vallejos ⚡ ⚡ #UFCVEGAS104 pic.twitter.com/cbtpdhvhrv

– ESPN MMA (@Spnmma) March 15, 2025

After his victory, Vallejos praised his fallen opponent for the opportunity to take part in competitions, and then made it clear that he revenge the only loss of his career against Jean Silva.

“Jean Silva, I'm coming for you,” said Vallejos in his interview after the fight for Michael Bisping through an interpreter. “Let's go.”

The current UFC Fight Night 254 results include:

• Kevin Vallejos Def. Seungwoo Choi via TKO (blows) – round 1, 3:09
• Waldo Cortes-Acosta Def. Ryan Spann over TKO (strikes) – round 2, 4:48
• Suyoung du def. AJ Cunningham on unanimous decision (30-27, 30-27, 30-27)
• Carlos Vera Def. Josias Musasa about submission (rear naked choke) round 1, 3:16
• Sam Hughes Def. Stephanie Luciano about shared decision (29-28, 28-29, 29-27)
• Andre Lima Def. Daniel Barez about submission (rear naked choke) round 3, 3:05
• Priscila cachoeira def. Josiane Nunes about Knockout (Punch) – round 1, 2:46
• Carli Judice Def. Yuneisy Dube via TKO (head kick, blows) – round 1, 1:40

For more information about the map, see MMA Junkies Event Hub for UFC Fight Night 254.