London 2012 - Flyweight (51kg) women’s boxers Nicola Adams (GBR, in blue) and Chungneijang Mery Kom Hmangte of India tangle during semifinal action.

Nanjing 2014 - The referee annouces Chang Yuan of China wins the Women's Fly (48-51kg) Boxing Final Match at Nanjing 2014 Youth Olympic Games in Nanjing, Jiangsu Province, on Aug. 26, 2014.

Nanjing 2014 - Gold medalist Chang Yuan of China(C),silver medalist Irma Testa of Italy(L) and bronze medalist Neriman Istik of Turkey on the podium during the awarding ceremony of the Women's Fly (48-51kg) Boxing Final Match at Nanjing 2014 Youth Olympic Games in Nanjing,Jiangsu Province, on Aug. 26, 2014. 

Nanjing 2014 - Balkibekova Alua (L) of Kazakhstan competes with Huang Hsiao-Wen of Chinese Taipei during women's fly (48-51kg) bout for the 5th place of boxing at the Nanjing 2014 Youth Olympic Games in Nanjing, Jiangsu Province, Aug. 25, 2014.

Nicola Adams (R) of Great Britain fights Tetyana Kob of Ukraine folowing her victory in the Women's Boxing Fly Weight (48-51kg) Quarterfinal 1 on Day 11 of the Rio 2016 Olympic Games at Riocentro on August 16, 2016 in Rio de Janeiro, Brazil.

Cancan Ren of People's Republic of China throws a right on Mandy Bujold of Canada in the Women's Boxing Fly Weight (48-51kg) Quarterfinal 2 on Day 11 of the Rio 2016 Olympic Games at Riocentro on August 16, 2016 in Rio de Janeiro, Brazil.

Sarah Ourahmoune (R) of France fights against Zhaina Shekerbekova of Kazakhstan during the Women's Boxing Fly Weight (48-51kg) Quarterfinal 4 on Day 11 of the Rio 2016 Olympic Games at Riocentro - Pavilion 6 on August 16, 2016 in Rio de Janeiro, Brazil.

Ingrit Lorena Valencia Victoria (L) of Colombia throws a left against Peamwilai Laopeam of Thailand during the Women's Boxing Fly Weight (48-51kg) Quarterfinal 3 on Day 11 of the Rio 2016 Olympic Games at Riocentro - Pavilion 6 on August 16, 2016 in Rio de Janeiro, Brazil.

Ingrit Lorena Valencia Victoria (L) of Colombia fights against Sarah Ourahmoune of France during a Women's Fly (48-51kg) Semifinal bout on Day 13 of the 2016 Rio Olympic Games at Riocentro - Pavilion 6 on August 18, 2016 in Rio de Janeiro, Brazil.

Nicola Adams (L) of Great Britain fights against Cancan Ren of People's Republic of China during a Women's Fly (48-51kg) Semifinal bout on Day 13 of the 2016 Rio Olympic Games at Riocentro - Pavilion 6 on August 18, 2016 in Rio de Janeiro, Brazil.