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American Alex Perez will battle Brazilian Matheus Nicolau to end Saturday's UFC Fight Night main card at the UFC APEX in Las Vegas. Action is scheduled to get underway at 7 p.m. ET. Nicolau enters the fray after being away for more than a year, following a first-round knockout by Brandon Royval at UFC on ESPN: Holloway vs. Allen on April 15, 2023, in Kansas City. Perez, meanwhile, is back after just over a month. Perez suffered a unanimous decision loss to Muhammad Mokaev at UFC Fight Night: Rozenstruik vs. Gaziev on March 2. It was his third setback in a row. 

Nicolau is a -185 favorite (risk $185 to win $100), while Perez comes back at +155 in the latest UFC Fight Night: Nicolau vs. Perez odds. Also on the main card is a light heavyweight matchup between Ryan Spann (-195) and Bogdan Guskov (+165). Before locking in any UFC Fight Night: Nicolau vs. Perez picks, make sure you see the MMA predictions and betting advice from SportsLine analyst Daniel Vithlani

Vithlani is a highly analytical UFC bettor who has been a consistent winner for SportsLine members since making his debut in January 2023 with a 5-0 record for UFC 283. In the last eight UFC pay-per-view events, Vithlani has gone 6-2 on main-event picks and his main-card selections in that span have netted his followers a profit of more than $1,500.

His highlights include calling an upset for Sean O'Malley (+210) against Aljamain Sterling (-250) at UFC 292 as part of a 4-1 main card and his UFC 299 winners included underdog selections on Dustin Poirier (+190) against Benoit Saint Denis (-230) and Michael Page (+110) against Kevin Holland (-130). Anyone who has followed him is way up. Anyone who has followed him has seen massive returns. 

Now, with UFC Fight Night: Nicolau vs. Perez on deck, Vithlani has studied the card from top to bottom and released his top picks. You can only see those picks at SportsLine

UFC Fight Night: Nicolau vs. Perez preview

Nicolau, 31, has had a lot of success since turning pro in 2010, at the age of 17. He posted a record of 10-1-1 competing in regional competitions in Brazil, before trying out for The Ultimate Fighter. In March 2015, he was selected as one of the fighters for The Ultimate Fighter: Brazil, and reached all the way to the semifinals where he lost by unanimous decision to Dileno Lopes. He debuted in UFC on Nov. 7, 2015, where he defeated Bruno Rodrigues by submission in the third round.

After a brief absence from UFC following a knock-out loss to Dustin Ortiz in 2018, but returned in January 2021. He has won four of five bouts since then. In 23 professional matches, Nicolau has gone 19-3-1, with five wins by knockout, five by submission and nine by decision. All three of his losses have been by knockout. He is currently the fifth-ranked fighter in the UFC flyweight rankings.

Perez, 32, began his professional fighting career in 2011 in the bantamweight division at TPF 9, earning a knockout win over Jesus Castro in the first round. He ended up compiling a 17-4 record, before joining Dana White's Contender Series 5 in August 2017. He then defeated Kevin Gray by technical submission in a return to the flyweight division. On Dec. 9, 2017, he won another match by submission, defeating Carls John de Tomas in a bantamweight bout.

Since then, he has gone 5-4 and has compiled a 24-8 overall record. He has won five matches by knockout, seven by submission and 12 by decision. Despite losing his last three matches, two by submission and one by unanimous decision, he finds himself ranked No. 8 in the UFC flyweight rankings. You can only see who to pick at UFC Fight Night right here

UFC Fight Night predictions 

We'll share one of Vithlani's UFC Fight Night selections here: He is backing Karine Silva (-145) to defeat Ariane Lipski (+125) in a women's flyweight bout.

Silva, 30, has been dominant of late, rattling off four wins in a row since being featured at Dana White's Contender Series 45 in October 2021, and eight victories overall. Silva earned Performance of the Night with a submission win over Poliana Botelho at UFC Fight Night: Volkov vs. Rozenstruik on June 4, 2022. In her last bout, a submission win over Maryna Moroz at UFC 292 last August, she needed just 4:59 to subdue Moroz.

Lipski, 30, has posted a 17-8 career record, including wins in her three latest matches. She is coming off a win by submission when she successfully used an armbar to defeat Casey O'Neill at 1:18 of the second round at UFC 296 on Dec. 16, 2023. The effort also earned her Performance of the Night. She earned a split decision win over Melissa Gatto at UFC on ESPN: Strickland vs. Magomedov on July 1, 2023.

Vithlani, however, isn't quite sure Lipski will be able to continue her win streak and gives the nod to Silva. "On the feet, I give the edge to Lipski. However, I feel Silva will eventually end up in top position where she thrives. If Lipski is on her back for long durations in this fight, she will be in trouble," Vithlani told SportsLine. See who else to back here

How to make UFC Fight Night picks  

Vithlani has strong picks for Nicolau vs. Perez and other bouts on the UFC Fight Night card. He's also backing a fighter who "will inflict damage with ground and pound" to emerge with a dominant victory. Those UFC picks and analysis are only available at SportsLine

Who wins UFC Fight Night: Nicolau vs. Perez, and how exactly does each fight end? Visit SportsLine now to get detailed picks on UFC Fight Night, all from the MMA expert who profited more than $1,500 on his UFC main-card picks in 2023, and find out. 

UFC Fight Night odds, fight card

See full UFC Fight Night picks, predictions, best bets here.

Matheus Nicolau (-185) vs. Alex Perez (+155)
Bogdan Guskov (+165) vs. Ryan Spann (-195)
Gabriel Benitez (+170) vs. Hayisaer Maheshate (-205)
Ivana Petrovic (-500) vs. Na Liang (+390)
Marnic Mann (+260) vs. Ketlen Souza (-325)
Don'Tale Mayes (+100) vs. Caio Machado (-125)
Austin Hubbard (+140) vs. Michal Figlak (-165)
Rani Yahya (+390) vs. Victory Henry (-500)
Tim Means (+250) vs. Uros Medic (-310)
Jonathan Pearce (-180) vs. David Onama (+150)
Austen Lane (+200) vs. Jhonata Diniz (-245)
Karine Silva (-145) vs. Ariane Lipski (+125)