The rationale behind shifting away from an isolated domestic season became clear in late 2025. In an interview published by Deadline, the executive production team revealed that boxing icon Manny Pacquiao served as direct inspiration for the concept of pitting top-tier regional champions against one another on an open proving ground.
Pacquiao’s legacy of athletic cross-pollination convinced creators that regional pride produces higher engagement metrics than domestic competitions alone. Instead of selecting 100 South Korean athletes with a handful of expatriates, Physical: Asia scales into a genuine multi-nation bracket. This framework recruits proven champions from the Philippines, Japan, Mongolia, Singapore, and Thailand.
In this format, returning Season 2 cast members occupy a distinct psychological space for the audience. They act as benchmark tests. When an international fighter or Olympic sprinter faces someone with Hong Beom-seok's proven endurance records, viewers instantly comprehend the stakes without needing lengthy introductions.
