LOS ANGELES  - Unbeaten US boxer Floyd Mayweather tweeted a picture of himself and his young daughter Friday, before surrendering in a Las Vegas court to begin a 90-day jail sentence.

"Me & my daughter spending precious time together before I leave my family, friends and fans..." Mayweather said on the social networking site.

Mayweather's sentence for battery had been postponed until June 1 so that he could fight Miguel Cotto on May 5 -- when the American won Cotto's World Boxing Association super welterweight title with a unanimous points decision.Mayweather had pleaded guilty before Las Vegas judge Melissa Saragosa on December 21 to domestic violence charges.

The guilty plea, and his no contest plea to two harassment charges, meant the 34-year-old boxer didn't go to trial on charges he hit his ex-girlfriend and threatened two of their children during an argument at her home in September of 2010.

The Las Vegas Sun reported the 34-year-old Mayweather, clad in a gray hooded sweatshirt, arrived at court on Friday morning, where he briefly appeared before Saragosa before he was handcuffed and escorted by Clark County marshals to jail.