Floyd Mayweather has warned Saul Alvarez his unbeaten record will look hollow come Saturday night in Las Vegas.
Alvarez brings a 42-0-1 record and, at 13 years Mayweather's junior, is widely predicted to give his superstar opponent a thorough physical test at the MGM Grand.
But Mayweather was in no mood to contemplate defeat at his final press conference ahead of light-middleweight contest - for the WBC and WBA Super World titles.
He said: "Alvarez hasn't faced 42 Floyd Mayweathers, because he'd be 0-42, so I don't really worry about who he's faced.
"Whatever any fighter can do good, I can do great. I was born to be here, to be at this level.
"I'm at the pinnacle, I'm the face of boxing, and I'm dedicated to my craft."
Alvarez was no less confident, if slightly more humble, saying: "We had a great preparation. We feel great - ready for Saturday.
"We're just waiting for the day, and we're ready to win like always. We prepared like never before. You can be sure that on Saturday we will win."