Ewa Brodnicka’s stateside debut is already one to forget.

The unbeaten junior lightweight titlist from Warsaw, Poland saw her lengthy reign come to an unceremonious close after twice failing to make the 130-pound limit for her showdown with mandatory challenger Mikaela Mayer (13-0, 5KOs). Brodnicka was 0.9 pounds over the limit on her first attempt, before returning within the one-hour time frame allotted by the Nevada State Athletic Commission only to still arrive slightly heavy at 130.1 pounds.

The two camps were in discussion over financial compensation for Mayer as a result of the scale fail, as this goes to publish. Their clash will stream live on ESPN+, live from The Bubble at MGM Grand in Las Vegas.

Mayer is still eligible to win the title, having weighed 129.8 pounds on the first try. The 2016 U.S. Olympian and current unbeaten contender from Los Angeles—who now lives and trains in Colorado Springs—enters her first career title fight.

Brodnicka (19-0, 2KOs) was attempting the sixth defense of the belt she claimed in May 2017, having first won the interim title before being upgraded prior to her April 2018 win over Sarah Pucek. The entirety of her career has taken place in Poland, though the unbeaten 36-year old has trained in Miami and Vegas for this event.

Both have fought just once in 2020. Mayer scored a dominant 10-round decision win over Nigeria’s Helen Joseph in this very venue this past July, in what was the first-ever female bout to headline on ESPN’s flagship network. Brodnicka outpointed Djemilla Gonturak this past March,

The bout will serve as the chief support to the unified bantamweight title fight between Japan’s Naoya Inoue (19-0, 16KOs)—as the reigning champ—and Australia’s Jason Moloney (21-1, 18KOs) who enters his second career title fight.

Jake Donovan is a senior writer for BoxingScene.com. Twitter: @JakeNDaBox