Since Michael Phelps was filmed staring down South African rival Chad le Clos before their 200m butterfly semi-final, his killer game face has become pretty infamous.
It was caught on film at this year’s Olympics, and instantly people went crazy for it, turning him into gifs and memes all over the internet.
One super fan has gone one step further however, tattooing Phelps’ stink eye on his calf forever.