

MAREK BARTL RETURNS TO GERMANY. HE WILL FACE KAMIL ONISZCZUK IN DÜSSELDORF.
06.01.2026 - Marek Bartl, nicknamed the “German Slayer,” is heading back to Germany. In Düsseldorf, he will face the durable Polish fighter Kamil Oniszczuk. Bartl is currently riding a two-fight winning streak, and another victory could move him into the TOP 10 of OKTAGON’s stacked middleweight division.





