WBO super featherweight champion Mikaela Mayer takes on IBF champion Maiva Hamadouche in a huge unification clash in Las Vegas.
Mayer made history last year after she became the first female boxer to headline a Top Rank on ESPN main event, and now she reaches another milestone with this fight being the first female world title main event in the four-plus year history of the Top Rank on ESPN series.
This fight will also generate interest on British shores with IBO and WBC champion Terri Harper looking to take on the winner in an attempt to become the undisputed women's champion at 130lbs.
Here's everything you need to know about Mayer vs. Hamadouche.
The main card is set to get underway at 8 p.m. ET / 12 a.m. GMT, with the main event ringwalks scheduled for 10 p.m. ET / 2 a.m. GMT. As ever with live fight cards, the main event timings are subject to change due to the length of the undercard bouts.
The fight will be broadcast on ESPN+ in the US, while Sky Sports holds the broadcasting rights in the UK.
The fight will take place at Virgin Hotels Las Vegas in Las Vegas, Nevada.