<p><br /> US boxing champion Floyd Mayweather Jr has been arrested in Las Vegas on suspicion of grand larceny and domestic battery after an ex-girlfriend accused him of beating her in front of their children, according to police and court documents.<br /> </p><p><br /> Mayweather, 33, who is undefeated in 41 bouts and widely regarded as the best defensive fighter of his generation, was jailed in the Clark County Detention Center in lieu of $3,000 bail, Las Vegas police spokesman Bill Cassell said.<br /> </p><p><br /> He was initially booked on a charge of grand larceny for the alleged theft of a mobile phone, but police said they are urging prosecutors to bring an additional charge of domestic battery based on the complaint of his ex-girlfriend.<br /> </p><p><br /> Mayweather's lawyer, Richard Wright, was not immediately available for comment.<br /> </p><p><br /> Cassell said police were called to the woman's home but made no arrests as the couple had merely quarreled and there was no evidence of a crime.<br /> </p><p><br /> Officers returned about two hours later when the woman called to report that she had been battered by Mayweather and that he had stolen her phone, Cassell said.<br /> </p><p><br /> Mayweather was arrested and taken into custody on Friday.<br /> </p><p><br /> The flamboyant Mayweather, who lives in Las Vegas and is known by the nickname "Money," fought his latest welterweight bout in May against fellow American Shane Mosley, registering a unanimous points victory that improved his career record to 41-0, including 25 knockouts.<br /> </p><p><br /> According to a 2010 list of the highest-paid US athletes compiled by Sports Illustrated magazine, Mayweather ranks third with total earnings of $60.3 million, behind golfers Tiger Woods and Phil Mickelson.<br /> </p>
