By Carlos Arias

LAS VEGAS --- Many have tried and none have succeeded in solving the "MayVinci Code," which is the latest nickname Floyd Mayweather has given himself.

Mayweather had a pair of fights against Jose Luis Castillo in 2002 and he might have come the closest, but both times Mayweather was awarded unanimous decision verdicts. Marcos Maidana's trainer Robert Garcia believes Castillo won the first fight against Mayweather.

"Well, if they feel Castillo beat me, why he couldn't do it again if he beat me the first time?" said Mayweather, who faces Maidana on Saturday night at the MGM Grand on Showtime PPV. "If you go back and look at the fight and just look at it on mute. A lot of times like I said on 'All Access,' I'm fighting the media, I'm fighting all the critics, the jealousy, I'm fighting a little bit of everything. My whole life has been a fight and a struggle. But I always rise to the top because I'm a natural born fighter and I'm a natural born winner at whatever I do.

"Like I tell my children, winning doesn't always have to do with having your hand raised or coming in first. Winning is giving 100 percent. So when I go back and look at the Castillo fight I don't even worry about what nobody said. I know it was Larry Merchant himself who said, 'Ah, we never seen Floyd like that.' Look at the Castillo fight. The guy lost the first six rounds, so you gonna tell me he won? So if he did win the next six rounds, that's a draw in my book the last time I checked. So out of the last six rounds even if won four and lost two, you know, I'm good with math, so that's like eight to four."

Contact Carlos Arias on Twitter @PunchyMcGee.