Freddie Roach is confident Manny Pacquiao will knock out long-time rival Juan Manuel Marquez when the two meet for a fourth time on Saturday.
The pair have shared 36 rounds in the ring with Pacquiao being awarded two decisions after their first bout ended in a draw, but trainer Roach believes his fighter will end this one early.
He said: "Last time. We're going to knock him out. End of story.
"The fourth fight could be the same as the last three, but Manny's hungrier now. I don't think Marquez has seen the best Manny yet.
"I think he has the fire underneath him that he used to have. He had four knockdowns in training camp, which were his first since the (Miguel) Cotto fight. He wasn't so compassionate in sparring this time."
Marquez, meanwhile, is still seething from the controversial defeats to the Filipino and is predicting another tight contest in Las Vegas.
The Mexican said: "People tell me, 'You really beat him', in the last three fights. A lot of people feel I beat him.
"But I want to have my hand raised. I want the judges to really look at what they're doing and get it right this time.
"Everybody knows what happened in the last few fights. I want to be more aggressive this time, but with intelligence, because Manny is a very dangerous fighter.
"Maybe I'm bigger, but I need to be fast, and I need to be quick to win this fight."