The Wembley Arena in London, England was treated to a super exciting main card at UFC on FUEL TV 7, more than making up for the lacking preliminary fights.

The most excitement arguably came from two contests at the UFC’s lighter weights, bantamweight and featherweight, with two upper-level competitors establishing their dominance in their respective weight class.

Here are the biggest winners and losers from Saturday night’s fights:

BIGGEST WINNER

Renan Barao – The interim UFC bantamweight champion improved his unbeaten streak to 30, winning 20 straight after a no-contest in Dec. 2007.

While The Brazilian was supposed to win, he faced a very game opponent in Michael McDonald who arguably won the first round and continued to sporadically land power shots after the fact.

Still, the title holder had too many weapons in his arsenal, bloodying “Mayday” in the fourth round before finally locking up an arm triangle choke. Barao vs. Dominick Cruz could be a really good fight to boast interest in the UFC’s 135-pounders.

WINNER

Cub Swanson – Swanson has come a long way since getting submitted by a washed up Jens Pulver and getting knocked out by featherweight champ Jose Aldo in eight seconds.

His move to Greg Jackson’s MMA has paid massive dividends, as his win over Dustin Poirier marks his fourth in a row. Swanson should be no more than one win away from a title shot at this point.

WINNER

James Te-Huna – His ridiculous Men in Black-inspired walkout would’ve been embarrassing if he lost, but Te-Huna weathered an early storm in the first round and battled back to win a decision.

Ryan Jimmo may not be a household name, but Te-Huna has put his name on the light heavyweight map by showing off his charisma and quietly winning four straight fights.

WINNER

Gunnar Nelson – The Icelandic grappling sensation had a ton of hype heading into his bout with Jorge Santiago Saturday night, but he certainly delivered.

While he wasn’t able to roll through the fellow Brazilian Jiu-Jitsu black belt, he showcased a crisp, albeit unorthodox, striking game no one knew he had. He deserves a major step up in competition next time around.

BIGGEST LOSER

Dustin Poirier – “The Diamond” was ready for Cub Swanson, hitting him with everything but the kitchen sink en route to a close, but definitive, decision loss.

While there is no shame in that, the fact in the matter is that the American Top Team product has now lost to two top 10 featherweights in his past three fights and is yet to beat a true contender.

Poirier just turned 24-years-old last month so he has plenty of time to improve, but his hopes of fighting for a title are likely going to have to wait at least a couple of years.

LOSER

Paul Sass – The English submission specialist has been exposed in the past six months. After getting submitted by Matt Wiman in September, he lost a lop-sided decision to Danny Castillo in front of his home crowd.

Sass, who had 12 wins by submission in his first 13 fights, has been exposed as a jiu-jitsu expert who can be out-wrestled, out-struck or overpowered. That’s not the worst part, as one more loss will likely earn him his walking papers from the UFC.

LOSER

Terry Etim – The injury-prone Liverpool native badly needed to erase the memory of him being knocked out by an Edson Barboza spinning wheel kick in January of last year.

Instead, he was thoroughly dominated by the unknown Renee Forte, who doesn’t even have a Wikipedia page. That doesn’t automatically mean Forte isn’t any good, but it does mean the UFC will seriously consider if Etim still belongs on their roster.

LOSER

Jorge Santiago – The former Sengoku middleweight champ is a world beater on the regional scene, but sports a horrific 1-5 record inside the Octagon after losing to Gunnar Nelson.

Santiago has solid (though not elite) jiu-jitsu and ground and pound and really nothing else to boast about. He can put on some entertaining fights outside of the UFC, but he simply isn’t a talent that belongs in the world’s premiere mixed martial arts organization.