Floyd Mayweather will face Andre Berto on Saturday night at the MGM Grand Garden Arena in Las Vegas. In what the undefeated boxer claims is the last fight of his career, he is an overwhelming favorite.

Mayweather has been given -3000 betting odds at Bovada.lv, and the website lists Berto as a +1100 underdog. Having won eight of his last nine fights by decision, Mayweather isn’t expected to knock out Berto. The odds of the bout going the distance have been set at -240.

The least likely outcome is considered to be a draw or a Berto win by decision. Both potential outcomes have been given +2500 odds. Berto has +1400 odds to knock out Mayweather. Only seven of Berto’s 30 career victories have come by knockout.

Mayweather has won the first 48 fights of his career, and a victory on Saturday would tie him with the legendary Rocky Marciano for a 49-0 record. Berto has lost three of his last six fights.

A live stream of the fight will be available through CBS at fights.cbsiam.com. It costs fans $64.99 to watch the fight online, compared to $74.95 to order the pay-per-view in HD.

The entire PPV, which starts at 8 p.m. ET, can be seen online. But because three fights are scheduled to air before Mayweather vs. Berto, the main event won’t actually start until closer to 11 p.m. ET. Mayweather’s May 2 fight with Manny Pacquiao didn’t begin until close to midnight, but that was because fans had issues ordering the PPV.