Mikaela Mayer faces Sandy Ryan in a championship rematch on Saturday, March 29 at the Bleaulive Theater at Fontainebleau Las Vegas. Two-weight champion Mayer (20-2, 5 KOs) of Woodland Hills, CA makes the first defense of her WBO welterweight title that she claimed by majority decision against British Ryan (7-2-1, 3 KOs) last September.
In the co-feature, Brian Norman Jr. (26-0, 20 KOs) of Decatur, GA defends his WBO welterweight title against Derrieck Cuevas (27-1-1, 19 KOs) of Puerto Rico. Among the prelims, Emiliano Vargas (12-0, 10 KOs) of Oxnard, CA, and Giovannie Gonzalez (20-7-2, 15 KOs) of Lodi, CA battle it out at super lightweight.
Here's what you need to know ahead of Mikaela Mayer vs Sandy Ryan.

When is Mikaela Mayer vs Sandy Ryan?
- Date: Saturday, March 29th, 2025
- Time: The start time is 10:00 pm ET / 7:00 pm PT. The prelims begin at 6:10 pm ET / 3:10 pm PT.
What has been said?
As crazy as this sounds after what happened last time in New York, I am actually looking forward to returning to the U.S.
I did fight in anger, and it clearly affected my performance. But it was a great fight and did great numbers for ESPN
"I'm not making any excuses, but after what happened before the fight last time, I did fight in anger, and it clearly affected my performance,
Mayer's victory last year crowned her a two-weight world champion and she
"I've never been one to shy away from challenges,
I’ve never been one to shy away from challenges. I could have taken my belt and moved on, but it was a highly entertaining fight, and if this is what the fans want, then that’s what I’ll give them
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