Boxer Floyd Mayweather Jr. was sentenced to serve three months in jail and fined $ 2,500 Wednesday in connection with a domestic violence incident , according to court officials and CNN affiliate reports . Mayweather pleaded guilty to a charge of battery and two counts of harassment , prosecutors said . He was arrested in September 2010 , police said , after he punched the mother of his children at his home , according to CNN affiliate KVVU . According to an arrest report , Mayweather threatened Josie Harris , saying , `` I 'm going to kill you and the man you are messing around with , '' the station said . Mayweather was sentenced to six months in jail on the misdemeanor charges , but 90 days will be suspended if he serves 90 days , said Mary Ann Price , spokeswoman for Clark County , Nevada , courts . He also must perform 100 hours of community service and attend long-term domestic violence counseling , she said . He must report to jail January 6 , Price said . Mayweather 's publicists declined comment on the matter . Felony charges of coercion , robbery and grand larceny were dismissed as part of a plea agreement , CNN affiliate KNSV reported .
Official : Mayweather pleaded guilty to misdemeanor battery and harassment . Police say he punched the mother of his children at his home , KVVU says . He must report to jail January 6 , a court spokeswoman says .