Wednesday 26 August 2015 13:10, UK
Ricardo Mayorga and Shane Mosley clashed at a press conference after the Nicaraguan appeared to slap his opponent's girlfriend on the behind.
Mosley, 43, reacted angrily to the incident and lunged at the 41-year-old Mayorga - causing a brief melee ahead of Saturday's rematch in Inglewood, California.
The American beat Mayorga in their first bout in September 2008 when he scored a dramatic final-round knockdown - and he has promised more pain for his fellow former world champion.
In an interview broadcast by TMZ, he said: "I can't wait. I'm going to kill him. I'm going to get in that ring and really just beat him down. I'll walk straight towards him and start throwing punches."
Mayorga said afterwards: "With all due respect, I did it to get in her boyfriend's head because he's clearly very upset."
I'm going to get in that ring and really just beat him down. I'll walk straight towards him and start throwing punches.
Mosley's girlfriend offered to pay $10,000 to let her throw punches at Mayorga, who responded by saying: "I'll give her $25,000 to let me slap her again."
The bout between the pair is the latest in a spate of clashes involving veterans, with the likes of James Toney, Antonio Tarver and Roy Jones Jr all in action of late.
