The bout puts Alvarez's WBC, WBO, WBA, and IBF belts on the line. It's a high-stakes match that boxing fans have been eager to see.
Alvarez, the Mexican superstar, looks comfortable at the weight. He's fought at super middleweight for a while now. His record stands at 63 wins, 2 losses, and 2 draws, with an impressive 59 knockouts.
Crawford, known as "Bud," is moving up from around 154 pounds for this fight. He's taking a big step up in weight, but his undefeated record of 41 wins with 31 knockouts shows he's no pushover.
"I'm ready for this challenge," Crawford said after the weigh-in. "Weight isn't going to be an issue. I've prepared well, and I'm here to win."
Alvarez, the defending champion, kept his words brief.
"The hard work is done," he stated. "Now it's time to show what we've prepared for in the ring."
Experts see Alvarez as the favorite due to his technique and experience at this weight. But they're not counting out Crawford, known for his smart boxing and stamina.
This fight marks the first time these two boxing stars have faced each other. It's a clash of styles and a test of Crawford's ability to handle the bigger man.
The main event is just hours away. Both fighters look ready to put on a show for the packed Allegiant Stadium crowd.