Rio , Brazil - 21 August 2016; Claressa Shields of USA, right, in action against Nouchka Fontijn of Netherlands during their Women's Boxing Middleweight Final bout at Riocentro Pavillion 6 Arena during the 2016 Rio Summer Olympic Games in Rio de Janeiro, Brazil. (Photo By Stephen McCarthy/Sportsfile via Getty Images)
TOPSHOT - Gold medalist USA's Claressa Maria Shields react during the medal presentation ceremony following the Women's Middle (69-75kg) Final Bout at the Rio 2016 Olympic Games at the Riocentro - Pavilion 6 in Rio de Janeiro on August 21, 2016. / AFP / Yuri CORTEZ (Photo credit should read YURI CORTEZ/AFP/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 21: Gold medalist Claressa Maria Shields of the United States poses on the podium during the medal ceremony for the Women's Boxing Middle (69-75kg) on Day 16 of the Rio 2016 Olympic Games at Riocentro - Pavilion 6 on August 21, 2016 in Rio de Janeiro, Brazil. (Photo by Alex Livesey/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 21: Silver medalist Nouchka Fontijn of the Netherlands, gold medalist Claressa Maria Shields of the United States and bronze medalists Dariga Shakimova of Kazakhstan and Qian Li of China pose on the podium during the medal ceremony for the Women's Boxing Middle (69-75kg) on Day 16 of the Rio 2016 Olympic Games at Riocentro - Pavilion 6 on August 21, 2016 in Rio de Janeiro, Brazil. (Photo by Alex Livesey/Getty Images)
