Amanda Serrano sets January 9 farewell fight against Skye Falzon in San Juan
Serrano, retiring after the bout, can break the women's knockout record with a 33rd KO, and says she wants to be remembered as a game-changer.
WBA and WBO women's featherweight titles
Serrano, retiring after the bout, can break the women's knockout record with a 33rd KO, and says she wants to be remembered as a game-changer.