American boxer Floyd Mayweather Jr has begun his three-month stint in jail for a domestic violence offence.
Mayweather Jr was handed the sentence in December after pleading guilty to attacking ex-girlfriend Josie Harris in 2010.
The judge allowed Mayweather time to fight Miguel Cotto on May 5 before serving his sentence.
The 35-year-old is unbeaten as a professional fighter having won all of his 43 bouts.
