WBA Interim Super Bantamweight champion Guillermo ‘El Chacal’ Rigondeaux (8-0, 6 KOs), arguably the greatest amateur boxer of all time, retained his world title March 19 by beating previously undefeated hometown favorite and former European champion, Willie ‘Big Bang” Casey (11-0, 7 KOs), in Dublin. Attached find “Rigo’s” money punch – left hook to the liver (photo by Kevin Finn) – that started the end for Casey.