Vasiliy Lomachenko had just delivered yet another boxing master class — this time defeating Luke Campbell via unanimous decision.
With Bob Arum in the ring and speaking with Sky Sports about the unified WBA/WBO/WBC world lightweight champion's next moves, it happened.
Undisputed cruiserweight king Oleksandr Usyk, now a heavyweight, savagely video-bombed the Top Rank promoter, flashing his friend Loma's newly won green-and-gold WBC title and their native Ukrainian flag before all at the O2 Arena in London and live on the ESPN+ app.
The moment made for instant Twitter hilarity, with boxing fans and pundits chiming in about Usyk's scene-stealing moment.
Just imagine what Usyk would do if Lomachenko follows through and becomes undisputed king, too.