Seven-division world boxing champion Amanda Serrano announced on Wednesday she will retire after a final professional fight on 9 January in Puerto Rico. ^[1] Amanda Serrano will defend her unified WBO and WBA featherweight titles against Australian fighter Skye Falzon in her final bout. ^[2] Amanda Serrano holds a professional boxing record of 50 wins, 1 loss, 4 draws, with 32 career knockouts. ^[3] Amanda Serrano holds the Guinness World Record for winning world boxing titles across seven different weight divisions. ^[4] The final fight will be held at the Coliseo de Puerto Rico in San Juan, promoted by Most Valuable Promotions and broadcast on DAZN. ^[5]