Michael Phelps is already somewhat of a legend to most Americans with 19 gold medals from the Olympics already awarded to him (and more potentially still to come), but for those who weren't awed by him due to his impressive swimming career, the time has now come for them to instead be awed by his seriously epic game face.

While Phelps waited to compete in his 200m Butterfly semifinal round, he appeared so focused that many mistook his game face for an epic glare at South Africa's Chad Le Clos, who was dancing in front of him and beatboxing as he listened to a song ahead of the competition. He later confirmed he wasn't even paying attention to Le Clos and was just focusing on the heat that went before them.

Watch the moment here.