What happened: Rambolek has publicly called out Jonathan Haggerty, proposing a clash between the two ONE World Champions for the bantamweight Muay Thai gold. ONE Championship highlighted the challenge on social media.

Why it matters: A bout between Rambolek and Haggerty would pit two premier strikers against one another in a blockbuster title fight. This potential matchup would clarify the bantamweight division's championship landscape while serving as a major draw for the promotion.

What to watch: Fans and ONE Championship matchmakers will await Haggerty's official response to the challenge.