FILIPINO Manny Pacquiao says he is "100% confident" he can end Floyd Mayweather's unbeaten record in Sunday's mega-fight in Las Vegas.
Both fighters were greeted by thousands of fans as they arrived in the desert city, Pacquiao (pictured) telling a crush of reporters he wasn't nervous despite bookmakers installing the American as a clear favourite.
"Any time I am underdog, I like that," the 36-year-old said. "It means my killer instinct and focus is fully there.
"Other people are getting nervous for me, but I am excited. This is the moment I believe he will experience his first loss."
The fighters are expected to split at least $A250 million, a figure that could increase depending on pay-per-view sales.
Mayweather, already the world's highest-paid athlete, will receive 60% of the final purse.
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