On Sunday, Team USA swimmer Lilly King let Russia's scandal-plagued Yulia Efimova know who was actually number one with a wag of a finger that quickly went viral. Efimova finished number one in her heat, and held up a "number one" finger to cameras following her victory. But Efimova's participation in the Olympics is controversial, as she has been banned twice in the past for doping. King is not a fan, and even bmor importantly, King had the best overall time in any heat, so she let Efimova know who the real champ was:

Sources: Twitter: Jacob Rude | The Guardian