Casey O’Neill’s actions spoke even louder than her post-fight roar, which is saying something.
At UFC Fight Night 271 on Saturday, O’Neill (11-2 MMA, 6-2 UFC) pummeled Gabriella Fernandes for a finish with a level of violence not usually seen by the women’s flyweight division. The stoppage came at 3:11 of Round 1 on the prelims Saturday at Climate Pledge Arena in Seattle.
The end began for Fernandes when O’Neill cracked her with a counter left hook. Fernandes went on the retreat, and O’Neill pursued. O’Neill connected with multiple stunning shots until a punch finally put Fernandes down, and the referee stepped in.
Woooow ‼️ Increíble nocaut 👊🏻 Casey O’Neill noquea a la brasileña Gabriella Fernandes en el primer round #UFCSeattle | Ver en vivo por @PPlusDeportespic.twitter.com/yufaqQrLUu
— UFC Español (@UFCEspanol) March 28, 2026
O’Neill let out a big scream in celebration. Though the bout was her second win a row, it was her first competition since August 2024. Getting to the cage has been perhaps her most difficult opponent, but even through inconsistent appearances, O’Neill continues to climb upward.
In defeat, Fernandes has a three-fight winning streak snapped.
Up-to-the-minute UFC Fight Night 271 results:
- Casey O’Neill def. Gabriella Fernandes via knockout (punches) – Round 1, 3:11
- Navajo Stirling def. Bruno Lopes via TKO (ground-and-pound) – Round 2, 4:05
- Alexia Thainara def. Bruna Brasil via unanimous decision (30-27, 30-27, 30-27)
- Ricky Simon vs. Adrian Yanez ends in a majority draw (29-28, 28-28, 28-28)
This article originally appeared on MMA Junkie: UFC Seattle video: Casey O’Neill batters Gabriella Fernandes
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