He eats three fried egg sandwiches for breakfast. He's training his one-year-old for the 2032 Olympics. And now, it appears, he's racing great white sharks.
Well, kind of.
In celebration of Shark Week, the Discovery Channel asked 23-time Olympic gold medalist Michael Phelps to race a simulated shark, whose swim speed was based on scientific data.
Watch the video to see who wins. (No word on how many egg sandwiches the shark can put away.)