Pro boxers losing early and often at the Tokyo Olympics

France's Maiva Hamadouche, right, exchanges punches with Finland's Mira Majut Johanna Potkonen during their women's lightweight 60-kg boxing match at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Frank Franklin II)

Busenaz Surmeneli, of Turkey, right, lands a punch to Poland's Karolina Koszewska during their welter weight (69kg) preliminary boxing match at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/ Frank Franklin II)

Serbia's Nina Radovanovic celebrates after winning a women's flyweight 51-kg boxing match against Canada's Mandy Bujold at the 2020 Summer Olympics, Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Frank Franklin II)

David Tshama Mwenekabwe, of the Democratic Republic of the Congo, left, exchanges punches with Camaroon's Dieudonne Wilfredo Seyi Ntsengue during their men's middleweight 75-kg boxing match at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Frank Franklin II)