Olympic champion Claressa Shields (right) meets Hanna Gabriels in a boxing match at the Masonic Temple in Detroit, Michigan on June 22, 2018. Shields suffered a first-round knock-down by Gabriels—the first time that had happened in Shields' career—but went on to win the match by unanimous decision. Shields is the first American woman to win an Olympic gold medal in boxing, and the first (male or female) to win a gold back-to-back in successive Olympic Games.