Rose Namajunas (image via UFC / X)

By FCF Staff

Here are the weigh-in results for UFC Vegas 89, which is taking place Saturday at the Apex facility.

In the main event, former strawweight champ Rose Namajunas will battle fellow flyweight contender, Amanda Ribas.

The main card will also feature a bout between rising heavyweight Karl Williams and Justin Tafa.

Main card (ESPN, 10 p.m. ET)

Amanda Ribas (125.5) vs. Rose Namajunas (125.5)
Justin Tafa (264.5) vs. Karl Williams (246.5)
AJ Dobson (185.5) vs. Edmen Shahbazyan (186)
Cameron Saaiman (135) vs. Payton Talbott (135.5)
Billy Quarantillo (145.5) vs. Youssef Zalal (146)
Fernando Padilla (145) vs. Luis Pajuelo (145)

Preliminary card (7 p.m. ET)

Kurt Holobaugh (155.5) vs. Trey Ogden (155.5)
Julian Erosa (146) vs. Ricardo Ramos (145.5)
Cody Gibson (135.5) vs. Miles Johns (136)
Jarno Errens (144.5) vs. Steven Nguyen (145)
Montserrat Rendon (135) vs. Darya Zheleznyakova (135.5)
Andre Lima (126) vs. Igor Severino (125)
Mick Parkin (262.5) vs. Mohammed Usman (237)

Results via MMA Junkie.com.