Floyd Mayweather Sentenced to 90 Days in Jail for Domestic Assault

Floyd Mayweather is undefeated in the boxing ring. But the multiple-time, multiple-weight class champion just lost a battle in court: a judge sentenced him to 90 days in prison.

 Mayweather was arrested in September of 2010 after ex-girlfriend Josie Harris, the mother of his children, accused the athlete of hitting her in the head in front of the former couple's kids.

Following the incident, this Grand Rapids, Michigan native agreed to a deal with prosecutors in which he pleaded guilty to misdemeanor domestic violence in exchange for lawyers dropping any felony charges. He also pleaded no contest to a pair of misdemeanor harassment charges stemming from an alleged threat to beat up his kids.

Mayweather must begin serving his sentence on January 3. He must also complete 100 hours of community service and a 12-month domestic violence program. So much for that spring bout with Manny Pacquiao.