Women's boxing makes Olympic debut

Women's boxing makes its debut at the London Olympic Games.

FILE - In this Friday, Aug. 12, 2016 file photo, United States' Mikaela Joslin Mayer, left, fights Micronesia's Jennifer Chieng during a women's lightweight 60-kg preliminary boxing match at the 2016 Summer Olympics in Rio de Janeiro, Brazil. U.S. Olympic boxer Mikaela Mayer announced her decision to pursue a professional career Friday, July 14, 2017 signing with promoter Top Rank. Her debut bout will occur in downtown Los Angeles on Aug. 5. (AP Photo/Frank Franklin II, File)

In this Jan. 19, 2017 photo, Idamelys Moreno's boxing gloves hang on a line to dry, after a training session in Havana, Cuba. Women were first allowed to box at the Olympics during the 2012 Summer Olympics but they are still not allowed to box in Cuba. (AP Photo/Ramon Espinosa)

Boxing - Women's Fly (51kg) Semifinals Bout 252

2016 Rio Olympics - Boxing - Semifinal - Women's Fly (51kg) Semifinals Bout 252 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 18/08/2016. Ingrid Valencia (COL) of Colombia and Sarah Ourahmoune (FRA) of France compete. REUTERS/Pool

Boxing - Women's Fly (51kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Fly (51kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 20/08/2016. Gold medallist Nicola Adams (GBR) of Britain poses with her medal. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 and London 2012. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016 while posing with her other medal from London 2012. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 (R) and London 2012. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 (purple) and Rio 2016 as she sings the national anthem. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 and Rio 2016 (L). REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 and London 2012. REUTERS/Peter Cziborra TPX IMAGES OF THE DAY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Final Bout 270

2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA arrives for her bout. REUTERS/Matthew Childs TPX IMAGES OF THE DAY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA waits to get on the podium alongside (from L) silver medallist Nouchka Fontijn (NED) of Netherlands, and bronze medallists Dariga Shakimova (KAZ) of Kazakhstan and Li Qian (CHN) of China. REUTERS/Pool FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. (From L) Silver medallist Nouchka Fontijn (NED) of Netherlands, gold medallist Claressa Shields (USA) of USA and bronze medallists Dariga Shakimova (KAZ) of Kazakhstan and Li Qian (CHN) of China stand during the singing of the national anthem. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

REFILE - CORRECTING BYLINE IN CAPTION2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 (purple) and Rio 2016 as she sings the national anthem. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

REFILE - CORRECTING BYLINE IN CAPTION2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 and Rio 2016 (L). REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 and London 2012. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 and London 2012. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from Rio 2016 (R) and London 2012. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA bites her medal from Rio 2016 while posing with her other medal from London 2012. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 (purple) and Rio 2016 as she sings the national anthem. REUTERS/Matthew Childs FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 and Rio 2016 (L). REUTERS/Matthew Childs FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA reacts. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Silver medallist Nouchka Fontijn (NED) of Netherlands poses with her medal. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA poses with her medals from London 2012 and Rio 2016 (R). REUTERS/Matthew Childs FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Bronze medallist Dariga Shakimova (KAZ) of Kazakhstan poses with her medal. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. (From L) Silver medallist Nouchka Fontijn (NED) of Netherlands, gold medallist Claressa Shields (USA) of USA and bronze medallists Dariga Shakimova (KAZ) of Kazakhstan and Li Qian (CHN) of China pose with their medals. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Bronze medallist Li Qian (CHN) of China poses with her medal. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Bronze medallist Dariga Shakimova (KAZ) of Kazakhstan reacts next to fellow bronze medallist Li Qian (CHN) of China. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA reacts. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Victory Ceremony

2016 Rio Olympics - Boxing - Victory Ceremony - Women's Middle (75kg) Victory Ceremony - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Gold medallist Claressa Shields (USA) of USA reacts. REUTERS/Peter Cziborra FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Final Bout 270

2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA wears her national flag as she celebrates after winning her bout. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Final Bout 270

2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA wears her national flag as she celebrates after winning her bout. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Final Bout 270

2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA and Nouchka Fontijn (NED) of Netherlands compete. REUTERS/Pool FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.

Boxing - Women's Middle (75kg) Final Bout 270

2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA reacts after winning her bout against Nouchka Fontijn (NED) of Netherlands. REUTERS/Peter Cziborra

Boxing - Women's Middle (75kg) Final Bout 270

REFILE - CORRECTING BYLINE2016 Rio Olympics - Boxing - Final - Women's Middle (75kg) Final Bout 270 - Riocentro - Pavilion 6 - Rio de Janeiro, Brazil - 21/08/2016. Claressa Shields (USA) of USA arrives for her bout. REUTERS/Matthew Childs FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS.