Claressa Shields successfully retained her gold medal on Sunday after defeating Nouchka Fontijn of the Netherlands in the women's middleweight final at the 2016 Olympics in Rio de Janeiro.
Shields became the first American boxer in history to successfully defend her Olympic gold medal, per the Guardian's Bryan Armen Graham:
Claressa Shields wins a second consecutive gold medal in the middleweight division. First ever American boxer to win back-to-back golds.
— Bryan Armen Graham (@BryanAGraham) August 21, 2016
Shortly after her victory, Shakhobidin Zoirov of Uzbekistanclinched the second of four boxing gold medals on offer on Sunday, beating Russia's Misha Aloian in the men's flyweight final.