"I'm just ready for something different," he said. "My swimming career might be over, but I have the future ahead of me to kind of turn the page and start whatever I want... It's not the end of a career, it's the beginning of a new journey."
He also reiterated his retirement plans during a Facebook Live video in the hours before Saturday night's race, saying, "Go for 30 medals in Tokyo? I don't think so, boys and girls. This is over, this is it. Tonight's the last one and wild to think about. Twenty-four years in the sport and we're finishing up tonight."