UFC on Fox Primer: Mackens Semerzier vs. Robert Peralta

Photos by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images

In the fourth bout of the night, we'll get to see an intriguing battle at 145. Both guys kickstarted their rise to prominence with huge upsets, and hope to take another step up the ladder in the UFC with a second straight win. Mackens Semerzier (6-3, 1-0 UFC) meets Robert Peralta (15-3, 1-0 UFC) in a featherweight bout at UFC on Fox 1.

Neither fighter is currently ranked on the USA Today/BE Consensus Rankings, and this bout probably isn't going to change that. Semerzier needs more quality wins to erase the three WEC losses, and Peralta just doesn't have the big-game experience yet. This featherweight UFC on Fox fight will be on the preliminary card, which will be streamed live on Facebook. The Facebook stream begins at approximately 4:45 p.m. ET/1:45 p.m. PT.

How do these two stack up?

Semerzier: 31 years old | 5'9" | 72" reach
Peralta: 28 years old | 5'8" | 71' reach

What have these two done recently?

Semerzier: W - Alex Caceres (SUB)  | L - Cub Swanson (SD) | L - Javier Vasquez (SUB)
Peralta: W - Mike Lullo (UD) | W - Hiroyuki Takaya (SD) | W - Chris Kirtley (SUB) 

How did these two get here?

Mackens Semerzier is a former marine and high school wrestler who got into MMA back in 2008. He was brought into the WEC with just four pro fights under his belt, and pulled off one of the biggest upsets of 2009 when he submitted former IFL champion and BJJ black belt Wagnney Fabiano with a triangle. It went downhill after that though, with three straight losses in the organization. His last WEC bout against Cub Swanson was very entertaining (it won fight of the night) and super-close though, so he was brought over to the UFC anyway. He made his UFC debut in style, submitting fellow UFC on Fox competitor Alex Caceres in the first round. 

Robert Peralta is a Honduran-Mexican fighter who has fought in both countries in the past. He was a regular on the California MMA scene and was brought in to face Dream featherweight champion Hiroyuki Takaya in his Strikeforce debut. Like his opponent, he pulled off one of the bigger upsets of the year when he defeated Takaya by split decision. That was enough to get a late replacement call from the UFC (where he actually replaced Semerzier) to meet Mike Lullo. Peralta was victorious by unanimous decision and will look for his second win against Mackens.

Why should you care?

This is likely to be one of the most exciting fights on the undercard. Both of these guys like to stand and trade, and are capable on the ground as well if it goes there. It won't win fight of the night, but it certainly could be in the running.

More UFC on Fox preview coverage from Bloody Elbow after the jump.

SBN coverage of UFC on Fox 1: Velasquez vs. Dos Santos

UFC on Fox 1: Clay Guida vs. Ben Henderson Dissection - Dallas Winston

UFC on Fox 1: Dustin Poirier vs. Pablo Garza Dissection - Dallas Winston

UFC on Fox Weigh-In Results: Velasquez - 249, Dos Santos - 239 - Tim Burke

UFC on Fox: Clay Guida Vs. Ben Henderson For Number One Contender - Matt Roth

UFC on Fox: Clay Guida Vs. Ben Henderson For Number One Contender - Matt Roth

UFC on Fox: Saying Goodbye to Gladiator Man With an Examination of Gladiatorial History

UFC Sells Out Advertising Space for Debut on Fox, Attracts Big Name Sponsors - Leland Roling

UFC on Fox: Velasquez vs dos Santos Staff Picks and Predictions

UFC on Fox: For Champions, What A Difference Five Years Can Make - Josh Nason

UFC on Fox: Cain Velasquez Career Retrospective Part 3 - Fraser Coffeen

UFC on Fox: Velasquez vs. Dos Santos Betting Lines - Tim Burke

UFC on Fox 1: Facebook Undercard Dissection - Dallas Winston

UFC on Fox: Dana White, the Unlikely Man To Lead the UFC to Prominence - Matthew Roth

UFC on Fox: Brock Lesnar, Alistair Overeem Targeted by UFC, Fox Marketing Push - Leland Roling

UFC on Fox: Dana White Talks Production, Pay-Per-View vs. Free Shows - Tim Burke

UFC on Fox: Mark Munoz, Tito Ortiz, Fabricio Werdum Predict Velasquez vs. Dos Santos - Leland Roling

UFC on Fox: Cain Velasquez Career Retrospective Part 2 - Fraser Coffeen

UFC on Fox: Yamamoto vs. Uyenoyama and Escovedo vs. Caceres Dissection - Dallas Winston

UFC on Fox Round Table - Is Velasquez Vs. Dos Santos The Most Important Fight In UFC History?

UFC on Fox Media Call News: Fuel To Have 2000 Hours Of Programming - Matthew Roth

UFC on Fox Press Conference Video and Coverage - Tim Burke

UFC on Fox Promo Video Takes Bob Arum to Task - Brent Brookhouse

UFC on Fox: Historical Significance of Network TV for Heavyweight Title Fight Being Undersold - Brent Brookhouse

UFC on Fox: With Clay Guida vs. Ben Henderson in the Dark, Lightweight Title Picture Gets Murky - Leland Roling

UFC on Fox: Ben Henderson Says Winning is More Important Than Being on TV - Tim Burke

UFC on Fox: Cain Velasquez Career Retrospective Part 1 - Fraser Coffeen

Bad Boy Presents Bloody Elbow Radio - Episode 97: UFC 138 Aftermath, UFC on FOX Discussion

UFC on Fox: The Challenge of Promoting Cain Velasquez and Junior dos Santos - Leland Roling

UFC on Fox Predictions: Fighters Weigh In on Velasquez vs. Dos Santos - Leland Roling

UFC on Fox: Dana White Video Blog, Part 1 - Tim Burke

UFC on Fox: John McCarthy Likely to Referee Cain Velasquez vs. Junior Dos Santos - Tim Burke

UFC on Fox: Clay Guida Wants Title Shot After Ben Henderson Bout - Brent Brookhouse

UFC on Fox 1 Fight Card: Velasquez vs. Dos Santos

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