Former Olympian Hector Luis Garcia and Chris Colbert face off in a WBA super featherweight eliminator.
Colbert had been due to fight WBA champion Roger Gutierrez, but Gutierrez tested postive for Covid-19, meaning the eliminator was put into action.
There's also room on the undercard for IBF champion Jerwin Ancajas to defend his strap against Fernando Martinez.
Here's everything you need to know about Colbert vs. Garcia.
The main card gets underway at 10 p.m. ET / 3 a.m. GMT with main event ringwalks scheduled for 12 a.m. ET / 5 a.m. GMT. As ever with live fight cards, these timings are subject to change due to the length of the undercard bouts.
The fight will be broadcast on Showtime in the U.S., a UK broadcaster hasn't been announced.
The fight takes place at The Chelsea at the Cosmopolitan of Las Vegas.