FILE - Ukraine's Yuri Cheban celebrates his gold in the men's canoe single 200m final during the 2016 Summer Olympics in Rio de Janeiro, on Aug. 18, 2016. Cheban, one of Ukraine's most decorated Olympians, told The Associated Press in an email exchange Wednesday, Nov. 30, 2022, that he is auctioning his medals — two golds and a bronze — in hopes of raising a six-figure donation to contribute to the war effort in his native land. (AP Photo/Matt York, File)

FILE - Ukraine's Yuri Cheban paddles for gold during the men's canoe single 200m final during the 2016 Summer Olympics in Rio de Janeiro, on Aug. 18, 2016. Cheban, one of Ukraine's most decorated Olympians, told The Associated Press in an email exchange Wednesday, Nov. 30, 2022, that he is auctioning his medals — two golds and a bronze — in hopes of raising a six-figure donation to contribute to the war effort in his native land. (AP Photo/Andre Penner, File)

FILE - Ukraine's Yuri Cheban celebrates his gold medal in the men's canoe single 200m final during the 2016 Summer Olympics in Rio de Janeiro on Aug. 18, 2016. Cheban, one of Ukraine's most decorated Olympians, told The Associated Press in an email exchange Wednesday, Nov. 30, 2022, that he is auctioning his medals — two golds and a bronze — in hopes of raising a six-figure donation to contribute to the war effort in his native land. (AP Photo/Matt York, File)