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Robbie Lawler flashed his pearly whites throughout his UFC title fight with Johny Hendricks. All but forgotten, one foot out the door just two years ago after a loss to Lorenz Larkin in Strikeforce, Lawler had worked his way back into title contention.

That, alone, is something to smile about. But getting punched in the face? Lawler was just so happy to be fighting for the belt that the mere thought of being there was enough to light up his eyes.

Hendricks lands a left hand? Smile.

Hendricks lands a big knee? Smile.

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Smart won.

Heart won.

Johny Hendricks was at his best when his best was needed Saturday at UFC 171, turning away a strong second-half push from Robbie Lawler to claim the vacant welterweight title via unanimous decision.

Their instant-classic fight began the post-Georges St-Pierre era in style—with a visceral, five-round slugfest that at times seemed the antithesis of the slow-and-steady performances that had become the norm from the previous champion.

If there were any lingering questions about what the 170-pound class would look like with St-Pierre out on his self-imposed sabbatical, Hendricks and Lawler provided the answers.

Their back-and-forth scrap will surely be a Fight of the Year candidate and set up a litany of fresh storylines for Hendricks as he begins his reign as titlist.

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The post-Georges St-Pierre era begins in earnest on Saturday night, when Johny Hendricks and Robbie Lawler scrap for the vacant welterweight title at UFC 171.

In addition to learning who will shepherd the 170-pound championship into this uncertain future, MMA fans stand a good chance of discovering the identity of the new No. 1 contender as well.

The winner of Carlos Condit vs. Tyron Woodley has the inside track to face the winner of Hendricks vs. Lawler sometime this summer, but Hector Lombard vs. Jake Shields could also produce a legitimate title challenger.

If ever there was a time to be bold in the welterweight division, it’s now.

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Robbie Lawler, circa 2001, was a fight promoter's dream. Raw-boned, corn-fed and lily white, the 19-year-old Iowan prodigy appeared to be cut from granite as he laid waste to Saburo Kawakatsu at a long-forgotten extravaganza in Hawaii. 

The world wasn't watching Shogun Fights, but that wasn't important, at least not for Lawler. One man who mattered was in the front row watching the laser light show and world-class fighters—Dana White, in his first year as UFC president and looking to reinvent the fight game.

White, on his way toward becoming one of America's most iconic fight promoters, knew what he wanted. And he wanted Lawler, going so far as to compare a kid in his fourth professional fight to the fearsome boxer Mike Tyson, signing him to a UFC contract in what he called "a Christmas present to myself."

At the time fans had a bit of fun with that piece of hyperbole. Though not yet bald and bombastic, White was already developing a reputation as an emotional and compelling interview. This, it was thought, was just an early example of Dana being Dana.  

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Arguably the most interesting thing about Saturday's fight between Johny Hendricks and Robbie Lawler is that it doesn’t really matter who wins.

Either way—and barring something unforeseen—the UFC 171 main event will usher in a new era for the welterweight division. No matter who hangs the no-vacancy sign on the 170-pound title, one of the fight company’s most reliable weight classes will be unequivocally changed.

For the first time since 2008, the welterweight class will have an undisputed champion not named Georges St-Pierre. Regardless of this weekend’s result, every man in the division will enjoy new life, and each of them will have a new target upon which to heap his most sinister desires.

Welterweight will be scruffier and a little rougher around the edges come Monday, with either Hendricks or Lawler at the helm. We’ll trade custom suits and polite sound bites for ball caps and straight talk, careful game-planning for bad intentions, and a half-decade of French-Canadian dominance for a wide-open division where it feels like anybody has a shot to wear the belt.

Credit: AXS TV

Eldarhan Machukaev, nicknamed "Sniper 95," attempted to build speed as he scrambled across a series of obstacles, with his flight-or-fight instinct on overload. The young Russian mixed martial arts fighter, sporting three wins to a single loss so far in his professional career, hasn't likely taken too many backward steps in his life. 

But this was no ordinary fight. This was the Hip Show, a wacky combination of extreme game-show hijinks in the American Gladiators mold and reality combat a la The Ultimate Fighter.

With his partner eliminated, Machukaev had to survive for one minute against the tag team known as Sparta. Rinat Fakhretdinov (aka Gladiator) and Shamsudin Kurbanov (aka Agul) are two skilled fighters who had one goal at that moment—to finish Sniper 95.

Within 10 seconds, they had him on the ground. Then it happened. As Gladiator secured an ankle lock, Agul locked up an armbar. Sniper 95, helpless and alone, had to survive two submission attempts at once.

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Diego Sanchez is perhaps the UFC’s pound-for-pound most likable fighter.

At least in interview settings, the first-ever The Ultimate Fighter winner comes across as one of MMA’s true nice guys. He’s thoughtful and honest—forthcoming to a fault—with a gentle demeanor that belies the ferocious, swing-from-the-heels style that has made him one of the company’s most popular and dependably exciting attractions.

When he takes on undefeated up-and-comer Myles Jury on Saturday at UFC 171, it’ll be his 20th appearance in the Octagon and fight No. 31 of his career overall.

He’ll do it as one of just three members of that original TUF cast who remain active. Even as fellow TUF 1 alumnus Chris Leben hung up his gloves in January and TUF 6 winner Mac Danzig called it quits last week, Sanchez appears to have no intention of slowing down.

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For many of the UFC's formative years, light heavyweight was the company's undisputed glamor division.

The 205-pound class became comfortably ensconced as the UFC’s marquee attraction from roughly 2000-07, when stars like Chuck Liddell, Randy Couture and Tito Ortiz carried the torch. In more recent years, light heavyweight lost a step; first as a series of lesser champions passed the belt around like a hot potato, then after Jon Jones turned the title picture into a one-man show.

The 26-year-old champion’s ascendance has itself been a thing of unmistakable beauty, but to the extent there was much drama in it, Jones snuffed it out with one lopsided victory after another. 

In the wake last weekend’s UFC London event, however, it appears 205 pounds might be poised for a return to greatness, with a robust crop of contenders suddenly hot on Bones’ heels.

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Alexander Gustafsson, the recently minted Swedish superstar, doesn't appear to be going away anytime soon. Six months after he took champion Jon Jones to the limit in 2013's best fight, Gustafsson dismantled British slugger Jimi Manuwa in compelling fashion.

Showing no mercy in Manuwa's own backyard, Gustafsson managed to knee his opponent in the face while simultaneously propping up the UFC's new Fight Pass streaming system.

No small feat, that.

After the fight, he took to the microphone. There, the usually soft-spoken Gustafsson minced no words, straight ganking the microphone from UFC analyst Dan Hardy to let his soul flow out.

"Jon Jones, I want my title shot again," a passionate Gustafsson said. "I'm right here. Whenever you want, man. Whenever you want."

USA Today

There was legitimate tension the last time we saw Alexander Gustafsson in the UFC Octagon. A single question lingered in the air. 

Had the young Swede—blond beard glistening with sweat, piercing blue eyes radiating hope—won the UFC light heavyweight title from the great Jon Jones?

The fact we were even asking said volumes about Gustafsson's performance that night. No one else had come close to testing Jones, not even former champions like Lyoto Machida, Rashad Evans or Quinton Jackson.

Gustafsson had made him work for it.