Mayweather decisions Berto in last fight to remain unbeaten (The Associated Press)

Floyd Mayweather Jr. wasn’t about to change what he does best in his last fight. Both dominant and defensive, Mayweather used all the tricks learned in a 19-year pro career Saturday night to take a lopsided 12-round decision over Andre Berto and retain his welterweight titles in what he insists was his final fight. Mayweather ran his perfect record to 49-0, tying a mark set by the late heavyweight champion Rocky Marciano, in a fight where he was chased but never really tested.