On January 31, 2026, the spotlight of European MMA will turn to Stuttgart as OKTAGON 83 brings its spectacular fight show back to the Hanns-Martin-Schleyer-Halle. With title fights and top prospects on the card, one name stands out above all for the German crowd: Frederic “Neanderthal” Vosgröne.
The undefeated grappling specialist
The Düsseldorf native remains unbeaten at light heavyweight with a perfect record of five wins in five fights. Even more impressive, Vosgröne has finished every professional bout by submission.
As a black belt in Brazilian Jiu-Jitsu and a highly decorated international grappler (No-Gi World Championship, European Championship, ADCC Trials), he is considered one of the most dangerous ground fighters in European MMA.
A style clash with unbeaten Chavarría
At OKTAGON 83, the #4 ranked contender will face another undefeated fighter: Jesus Chavarría (#6) from Honduras. The 24-year-old stands at 7–0 and has shown true versatility, with three KO/TKO wins, three decision victories, and a recent first-round finish.
It is a classic stylistic matchup — elite grappling versus explosive striking.
A score to settle
The bout carries extra tension: the two were originally scheduled to meet in Cologne. Now, they finally settle that unfinished business in Stuttgart. For Vosgröne, this is more than just another fight — a win over another undefeated opponent could push him straight into the title conversation.
With fighters like Niko Samsonidse, Alina Dalaslan, Lucie Pudilová, and Emilio Quissua also on the card, OKTAGON 83 is stacked from top to bottom. But when the “Neanderthal” steps into the cage, the arena is sure to erupt. Stuttgart is in for a true highlight.
