Kosuke Hagino, the men's 400-meter individual medley gold medalist at the 2016 Summer Olympics, is set to retire, sources close to the matter said Tuesday.
The 27-year-old also won the 200 IM silver in Rio but settled for sixth in that race this summer in his only individual event at the Tokyo Olympics. The sources said Hagino has already informed his team of the decision and is contemplating attending graduate school.
The Tochigi Prefecture native, recognized from a young age for his superior talent, made his Olympic debut as a high-school student at the 2012 London Games, where he won bronze in the 400 IM.