ONE Fight Night 42 delivers a high-stakes main event as undefeated 29-year-old American Chase "Mannimal" Mann (7-0) faces 21-year-old Turkish sensation Dzhabir Dzhabrailov (6-0) live on Sky Sports. Mann, fresh off a first-round TKO win against Isi Fitikefu in his ONE debut, combines powerlifting-derived strength with relentless grappling to threaten two-division champion Christian Lee's welterweight title. Dzhabrailov, meanwhile, has finished all six opponents in under two minutes, including three explosive finishes in his promotional debut.

The physical mismatch—Mann's 5ft 9 frame against Dzhabrailov's 6ft 2 power—sets up a tactical battle where Mann's well-rounded skillset meets Dzhabrailov's suffocating pressure.