The Olympian has already announced that he will not be returning to the Olympics after the Rio Games, and has officially hung up his suit for a tux, as he and Johnson continue to plan their upcoming wedding.
"Planning a wedding has been challenging the last couple of months. We've tried to get everything in order before Rio started. I know Nicole has been working very hard when I've been traveling, but she's asked for a lot of input and I've kinda given her free reign to make the wedding exactly how he wants."
Phelps capped off his final Rio competition with a gold-medal earning performance in the 400-meter medley relay. He will take home five gold medals and one silver when he heads back to the U.S., leaving behind a legacy as the greatest swimmers in the world, and earning 23 gold Olympic medals in his career.