10 p.m. ET: Main Card (ESPN+, ESPN, ESPN Deportes, SiriusXM Fight Nation)

7 p.m.: Prelims (ESPN+, SiriusXM Fight Nation)

UFC action resumes this weekend with UFC Fight Night Presented by Bud Light: Ribas vs. Namajunas live at UFC APEX in Las Vegas on Saturday, March 23. The main card begins at 10 p.m. ET on ESPN+, ESPN, ESPN Deportes and SiriusXM Fight Nation, with the prelims starting at 7 p.m. on ESPN+ and SiriusXM Fight Nation.

Main Event

No. 8 ranked flyweight contender Amanda Ribas (12-4) faces off against fan-favorite Rose Namajunas (12-6) in the main event. Ribas secured victories in two of her past three bouts, notably achieving a third-round TKO against Luana Pinheiro in November in the strawweight division. Namajunas, a former two-time strawweight champion, debuted in the flyweight division last September after a long break and returns to action with intentions of proving that she’s still one of the best in the world.

Co-Main Event

Dana White’s Contender Series alumnus Karl Williams (9-1) and Justin Tafa (7-3) collide in a heavyweight co-main event. Justin Tafa (7-3) comes in unbeaten in four straight fights while Williams has won seven straight including winning his first two fights in the UFC.

On the call

• Brendan Fitzgerald will call the action alongside Paul Felder and Laura Sanko. Charly Arnolt will handle reporting duties.

Main Card (ESPN+ at 10 p.m. ET)

Amanda Ribas (125.5) vs. Rose Namajunas (125.5)

Justin Tafa (264.5) vs. Karl Williams (246.5)

Edmen Shahbazyan (186) vs. AJ Dobson (185.5)

Payton Talbott (135.5) vs. Cameron Saaiman (135)

Billy Quarantillo (145.5) vs. Youssef Zalal (146)

Fernando Padilla (145) vs. Luis Pajuelo (145)

Preliminary Card (ESPN+ at 7 p.m. ET)

Kurt Holobaugh (155.5) vs. Trey Ogden (155.5)

Ricardo Ramos (145.5) vs. Julian Erosa (146)

Miles Johns (136) vs. Cody Gibson (135.5)

Jarno Errens (144.5) vs. Steven Nguyen (145)

Montserrat Rendon (135) vs. Darya Zheleznyakova (135.5)

Igor Severino (125) vs. Andre Lima (126)

Mohammed Usman (237) vs. Mick Parkin (262.5)