Floyd Mayweather will step into the ring for the 49th time on September 12, where he will take on Andre Berto.

Bleacher Report's own Jonathan Snowden shares the details of the bout, which will see Mayweather attempt to equal Rocky Marciano's unbeaten 49-0 record in what could well be his final fight:

The 38-year-old has received heavy criticism from all quarters following the announcement of the fight but has defended his choice of opponent.

Per Sky Sports, he said: "I have been getting backlash. They say no-one in the sport will buy the fight. I picked him because he is an exciting fighter."

Nevertheless, the overwhelming feeling surrounding the clash is that it will be a dull, one-sided affair with Berto standing little to no chance of threatening Mayweather's record. Bleacher Report's own Kevin McRae is certainly of that opinion:

KPM @McRaeWrites

I defended Mayweather when this Berto fight was rumored for CBS. As a PPV bout it's a total mismatch not worthy of your $$$.

Here's a look at the pair's key stats:

Aside from Mayweather's impeccable record and superior reach, the stats do hold at least some encouragement for Berto.

The American has only lost three times in 33 bouts and has made just three fewer knockouts than his opponent in 15 fewer fights.

Further, Berto is seven years younger than Mayweather, which could work in the former's favour, as the latter appears to be slowing down somewhat with age, per ProBoxing-Fans.com.

However, that's where the hope ends for Berto.

As McRae notes, Berto failed to live up to his early potential:

KPM @McRaeWrites

@K9boxing He's one of those what if fighters. Injuries and bad luck wrecked him in his prime.

Had injuries not intervened, the fight could be a close-run affair. However, in Mayweather, the 31-year-old faces a master tactician with flawless technique.

As Igor Guryashkin of ESPN reports, the 38-year-old is most accurate puncher in all weight classes of boxing and will utilise his longer reach to great effect, landing quick jabs on Berto before he's even in range to be hit himself.

Even when Berto closes the gap, Mayweather's defence is essentially perfect.

The American's incredible hand speed allows him to block even the quickest of punches, while his footwork and fluid movement ensure his opponents are often swinging at air.

Also, even on the few occasions Berto actually manages to hit Mayweather, it's unlikely to trouble him.

While he still possesses some of his old power—demonstrated by some strong punching in his knockout win over Josesito Lopez in March—shoulder surgery has largely robbed him of his ability to consistently pack power into his strikes, per McRae.

Ultimately, whatever Mayweather might say, the bout is barely a contest at all.

Expect a typical performance from Money in which he dances around his helpless opponent without being troubled.

Prediction: Mayweather to beat Berto by Unanimous Decision