Mike Tyson isn't just backing Manny Pacquiao to defeat Floyd Mayweather in tomorrow's match — the former undefeated heavyweight champion wants Pacquiao to knock out his “very small, scared” competitor.

Tyson slammed Mayweather in a video interview with Undisputed Champion Network posted online Wednesday after being asked about Mayweather's claim last week that he is greater than boxing legend Muhammad Ali.

“He's very delusional. If he was anywhere near that realm of 'greater than Ali,' he'd be able to take his kids to school by himself,” Tyson said of Mayweather. “He's a very small, scared man.”

Tyson didn't elaborate further about his entertaining comments regarding the undefeated Mayweather's school-going habits, but he did predict the match wouldn't last long. “I think it's gonna be a knockout,” he said. “I don't think it's gonna go the distance.

” Tyson told reporters again yesterday that he's hoping for a Pacquiao victory. “I just like Manny. Not necessarily because he throws a lot of punches but because he's very elusive and might be hard to hit.”

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