Women boxers at Rio Olympics break down barriers one punch at a time

Russia's Anastasiia Beliakova (C) fights USA's Mikaela Joslin Mayer during the Women's Light (57-60kg) Quarterfinal 3 match at the Rio 2016 Olympic Games at the Riocentro - Pavilion 6 in Rio de Janeiro on August 15, 2016. / AFP PHOTO / Yuri CORTEZ

Women boxers at the Rio Olympics say that they are still subjected to sexism, sneers and sniggers, but change is happening -- gradually.

The London 2012 Olympics were a landmark moment for women's boxing as the sport made its Games debut, with three champions etching their names into the history books.