Felix Trinidad stopped Ricardo Mayorga in the eighth round of their middleweight fight Saturday night.
Trinidad knocked Mayorga down three times in the eighth, before stopping the former champion with 21 seconds remaining.
The 31-year-old Trinidad, who won titles in three weight classes before suddenly retiring in July 2002, was impressive throughout the fight. He got the better of a series of explosive exchanges in the first round and dominated Mayorga in the eighth round.
Trinidad improved to 42-1 following his 35th knockout while Mayorga, of Nicaragua, dropped to 27-5-1.