Floyd Mayweather vs. Andre Berto: Fight Time and Scorecard Predictions

Floyd Mayweather Jr. will put his undefeated record on the line when he squares off against Andre Berto at the MGM Grand Garden Arena Saturday night, but the primary question at this point seems to revolve around the margin of Mayweather's presumed victory—not the potential for an upset loss. 

Although the bout has drawn ire because of the perceived gulf in talent between the two boxers, that doesn't mean they can't put on a show as Mayweather seeks to close out his career with one last win. 

With the Showtime pay-per-view slated to begin at 8 p.m. ET, here's a look at how Mayweather (48-0, 26 KOs) and Berto (30-3, 23 KOs) stack up, per ESPN Stats and Info:

The numbers don't lie. Mayweather is an overwhelming favorite, per Odds Shark, for good reason, and his masterful defense should wind up frustrating the boom-or-bust Berto as Saturday night's fight progresses.

"I always bring my A-game, and this fight against Andre Berto is no exception," Mayweather said when announcing the fight, according to ESPN.com's Dan Rafael. "He's a young, strong fighter who is hungry to take down the best. Forty-eight have tried before, and on Sept. 12, I'm going to make it 49." 

Just because the pound-for-pound king is bursting with confidence doesn't mean Berto is ready to back down.

"Best believe that I plan to bring it to Floyd and I'm not concerned about what 48 other fighters have been unable to do," Berto said, per Rafael. "Somebody is getting knocked out, and it won't be me. You don't want to miss this." 

The 32-year-old's bravado is admirable, but recent history suggests he'll be at a severe disadvantage when he comes to blows with Mayweather.

Berto started his career 27-0, but a unanimous-decision loss to Victor Ortiz four years ago sent his stock tumbling. Including that defeat, Berto has dropped three of his last six fights, with his three wins in that span coming over Jan Zaveck, Steve Upsher Chambers and Josesito Lopez. 

Kevork Djansezian/Getty Images

A contributing factor to his decline was a torn right shoulder tendon, which he underwent surgery to repair in 2013, that has gradually sapped him of his most redeeming in-ring quality over time.

"He used to carry tremendous power in his right hand (pre-surgery), but the devastating Berto who could put you to sleep with huge uppercuts and overhand rights is a memory," Bleacher Report's Kevin McRae wrote. 

Conversely, Mayweather has shown no signs of slowing down after defeating Manny Pacquiao by unanimous decision thanks to his blend of brilliant footwork, quick hands and ability to dictate pace.

When the main event rolls around Saturday night, the same formula should help Mayweather stay in control throughout.

The welterweight world titleholder has won his last six fights by decision—including two straight unanimous-decision victories—and it would be surprising to see him deviate from that trend against a fighter like Berto. 

The only conceivable route to victory for Berto would be a stunning knockout that sees him flash his vintage form with some whopping power punches, but that seems to be out of the realm of possibility at this stage in his career.

Instead, Mayweather should have every edge as he aims to tie Rocky Marciano's career mark of 49-0 and solidify his legacy with another tidy victory.

Scorecard prediction: Mayweather def. Berto by unanimous decision, 119-109, 119-109, 118-110.