LAS VEGAS – MMA Junkie was on scene and reporting live from Friday’s official UFC on ESPN 55 (ESPN/ESPN2/ESPN+) fighter weigh-ins at the UFC Apex.

Among those weighing in were Matheus Nicolau (19-4-1 MMA, 7-2 UFC) and former title challenger Alex Perez (24-8 MMA, 6-4 UFC), who meet in the flyweight main event, and Bogdan Guskov (15-3 MMA, 1-1 UFC) and Ryan Spann (21-9 MMA, 7-4 UFC), who fight in the light heavyweight co-feature. All four of those names hit their contracted marks.

Saturday's #UFCVegas91 main event is OFFICIAL after ranked flyweights Matheus Nicolau and Alex Perez successfully weighed in. pic.twitter.com/XVbZK27hOr

— MMA Junkie (@MMAJunkie) April 26, 2024

The same couldn’t be said for a pair of undercards fighters, though. David Onama was 2.5 pounds over the featherweight limit for his main card matchup with Jonathan Pearce, while octagon newcomer James Llontop barely missed the lightweight limit for his octagon debut vs. Chris Padilla.

The full UFC on ESPN 55 weigh-in results include:

MAIN CARD (ESPN, 7 p.m. ET)

• Matheus Nicolau (125.5) vs. Alex Perez (126)
• Bogdan Guskov (204.5) vs. Ryan Spann (205.5)
• Ariane da Silva (126) vs. Karine Silva (125.5)
• Jhonata Diniz (255) vs. Austen Lane (254.5)
• David Onama (148.5)* vs. Jonathan Pearce (146)
• Tim Means (171) vs. Uros Medic (171)

PRELIMINARY CARD (ESPN2/ESPN+, 4 p.m. ET)

• Victor Henry (135.5) vs. Rani Yahya (136)
• Michal Figlak (155) vs. Austin Hubbard (156)
• Caio Machado (251.5) vs. Don’Tale Mayes (264)
• Marnic Mann (115.5) vs. Ketlen Souza (115.5)
• James Llontop (156.5)** vs. Chris Padilla (154.5)
• Na Liang (126) vs. Ivana Petrovic (126)
• Gabriel Benitez (155) vs. Hayisaer Maheshate (155.5)

* Onama missed featherweight limit by 2.5 pounds; fined 20 percent of purse
** Llontop missed lightweight limit by 0.5 pounds; fined 20 percent of purse

For more on the card, visit MMA Junkie’s event hub for UFC on ESPN 55.