Saori Yoshida, Japan's three-time Olympic gold medalist in women's wrestling, is set to explain her retirement at a news conference in Tokyo.
The 36-year-old has also won 13 straight World Championships. She received the People's Honor Award in 2012.
Yoshida has not competed since winning the silver -- her fourth consecutive Olympic medal -- at Rio de Janeiro in 2016. She has mostly been coaching Japan's national squad and younger wrestlers at her alma mater.
Wrestling officials want Yoshida to help strengthen the national squad for the 2020 Tokyo Olympics.
Yoshida announced her retirement from the sport on Twitter on Tuesday. She will speak to reporters on Thursday.
It remains to be seen how Yoshida will describe her 33 years in wrestling and outline her plans for the future.