10 Count: Hyped debuts that didn't deliver

An unprecedented level of media coverage has surrounded the UFC debuts of female fighters Rhonda Rousey and Liz Carmouche at this weekend's UFC 157. While Carmouche has enjoyed press for making history as the promotion's first openly gay athlete, it's Olympic Judo player Rousey that remains the show's main attraction.

Dimpled, quick-witted and savage, Rousey is expected to emerge as one of the sport's top drawing cards. Having barely broken a sweat in her MMA career, winning seems to be a foregone conclusion.

But magazine covers are no guarantee of success, and not all heavily hyped debuts have gone the way promoters had hoped. Here's a look at fighters who failed to meet expectations their first time out of the gate:

10. Brock Lesnar (vs. Frank Mir, UFC 81, 2008)

A Renaissance man of violent contact sports, amateur wrestler Lesnar acquired his celebrity through a stint as a World Wrestling Entertainment attraction. When he tired of that industry's grueling road schedule, he decided to try out for the Minnesota Vikings despite never having played a day of college ball. When he failed to make the team, his focus turned to MMA -- realizing his dream, he once told an ESPN reporter, to "pick a fight on every street. If I wouldn't lose money, I'd fight ... every day."

Lesnar's UFC debut wasn't his first sanctioned bout: months earlier, it took him a minute to pummel an overmatched Min-Soo Kim in a little-seen pay-per-view event. But coming into the industry's leading promotion meant an unprecedented level of attention: Much was made of Lesnar's "lunchbox-sized hands" and a frightening level of agility for being a 280-pound slab of lean mass. It was a promotional tactic used by Japanese matchmakers for years to see if the pro wrestler had any real fight in him.

For a good portion of the 90 seconds he spent against Mir, the answer was yes. Lesnar quickly took Mir down and pounded him through the mat. But referee Steve Mazzagatti's restart -- Lesnar was docked a point for hitting behind the head -- seemed to slow his momentum, and his lack of submission knowledge cost him when Mir locked in a kneebar, forcing Lesnar to tap and exposing his limited training.

It was a painful education, and one Lesnar took to heart considering he practically disfigured Mir in their 2009 rematch.

9. Karam Ibrahim (vs. Kazuyuki Fujita, K-1 Dynamite, 2004)

While MMA has hosted a number of Olympic-level athletes and medal winners, the majority have been either alternates, bronze/silver competitors, or years removed from their prime. The Egyptian-born Ibrahim, however, holds the distinction of being the only mixed martial artist to have a prizefight the very same year he won his gold medal.

A Greco-Roman style wrestler, he was enticed by the promise of a sizable payday from Japan's K-1 promotion. Ibrahim's credentials were impeccable, and their choice of opponent was seemingly a gift as Fujita, an experienced fighter who nonetheless had Greco skills (as a national champion in Japan), paled in comparison to Ibrahim.

Call it an adrenaline dump, pure instinct, or just a temporary leave of his senses, but Ibrahim entered the ring completely forgetting his superior wrestling ability and decided to slug it out with Fujita -- a man dubbed "Ironhead" by the press for his near-inability to be knocked out. Predictably, Fujita brushed off Ibrahim's rudimentary strikes and needed barely a minute to send him crashing to the canvas.

Despite being in his athletic prime and world-class in the same base of wrestling that brought Randy Couture great success, Ibrahim never again competed in MMA. He remains one of the sport's greatest "what if" stories.

8. Renato "Babalu" Sobral (vs. Mikhail Zayats, Bellator 85, 2013)

A 16-year veteran, Sobral has fought all over the world and for virtually every major promotion, cultivating a name that made him one of Bellator's highest-profile acquisitions.

"Sobral is an awesome addition to the Bellator family," Bellator CEO Bjorn Rebney said at the time. "He's beaten some of the greatest fighters in the sport, and poses a tremendous threat to every fighter in our light heavyweight division."

While that may hold true, he posed little threat to Zayats, another debuting fighter for Bellator who held zero major wins over seasoned competitors. With seconds to go in the first round, Zayats uncorked a spinning back fist sending a dazed Sobral to the canvas where he was finished with strikes. Bellator's long game of having Sobral meet fellow 205-pound attraction Muhammed Lawal down the line was also TKO'd.

7. Satoshi Ishii (vs. Hidehiko Yoshida, Dream, 2009)

As Rousey and predecessors like Karo Parisyan have proved, Judo can be an extremely effective base for MMA since few athletes train enough of it to become proficient, and even fewer are prepared for some of the more unorthodox throws and trips that a seasoned Judoka can pull off.

Ishii won a gold medal in the 2008 Beijing Games and almost immediately declared his intentions to pursue a fight career. His credentials were impressive enough for the UFC to take the rare step of entering into discussions -- despite Ishii being a neophyte in the fight game -- before he had even a single bout to his credit.

Owing either to failed negotiations or the realization of the caliber of opponent he’d be tasked with, Ishii instead opted to make history by participating in the sport’s first gold medalist-versus-gold medalist bout against Hidehiko Yoshida in Japan. While Ishii was fresh off his win in the Games, Yoshida was nearly 20 years removed from his Olympic appearance and had lost four of his previous five bouts. It was intended to be a passing of the torch, and the likely emergence of a new star in the fading Japanese fight scene.

Unfortunately for Ishii, Yoshida wasn’t discouraged by statistics: he dominated Ishii standing en route to a unanimous decision win, smothering Ishii’s hype and prompting him to make the unprecedented move of accepting two amateur fights after he had already competed as a professional.

6. Mirko "Cro Cop" Filipovic (vs. Eddie Sanchez, UFC 67, 2007)

You'd have to go back to Mike Tyson to find a striker that prompted more tremors in opponents than Filipovic, a K-1-groomed kickboxer who made a grand entrance to mixed-style fighting in 2001, splitting open Kazuyuki Fujita's skull practically down to the bone. Where most strikers could often be nullified by wrestlers, Filipovic -- who had no amateur grappling background -- was able to defend tackles and expose the rudimentary stand-up of his opponents. "Cro Cop" was simply vicious, and his high kick carried the very real threat of serious injury.

Coming into the UFC after a long run in PRIDE, Filipovic had just enjoyed arguably his best success ever: winning that show's loaded Absolute tournament, pummeling names like Wanderlei Silva and Josh Barnett to claim the championship. Only months later, he was in the United States and facing the uncelebrated Sanchez, a grappler with little name recognition. Coming off a who's who of opponents in Japan, Sanchez seemed like a step backward.

Unlike most on this list, Filipovic did win his debut. But in doing so, he revealed a slower, more apprehensive fighter than he'd displayed during his run in Japan. In the end, there was no spectacular highlight-reel knockout that the announcers had practically guaranteed -- Filipovic knocked Sanchez down and threw some strikes to finish the job. After watching him fold men in half and rip away their self-awareness with a sniper's professionalism, this version of Cro Cop couldn't have been more unexpected. Or disappointing.

5. Norifumi "Kid" Yamamoto (vs. Demetrious Johnson, UFC 126, 2011)

Before the UFC began to heavily publicize the lighter weight divisions, there was one name that made the trip across the Pacific: "Kid" Yamamoto, a dynamic 140-pound fighter with an amateur wrestling background who could easily be mistaken for a striker. Fighting kickboxing star Masato Shiozawa, he managed to knock the bigger, far more experienced striker down -- a losing effort that nonetheless opened up eyes to Kid's potential as an all-around threat.

For years, Yamamoto was considered the fantasy matchup for Urijah Faber, the WEC's featherweight champion. Kid's 2009 loss to Joe Warren in Japan dulled the shine of that bout, but the UFC still pursued Yamamoto when he was contractually available. Making his debut at 135 pounds, Yamamoto was expected to outhustle Johnson. But Johnson -- now the UFC's flyweight champion -- beat Kid at his own game, being evasive and landing swarming strikes. For someone who had been discussed as a UFC hopeful for nearly a decade, Kid's debut was too little, too late.

4. Shinya Aoki (vs. Gilbert Melendez, Strikeforce, 2010)

The sport's one-time tendency of elevating the reputations of Japanese fighters often came from their lack of challenging competition -- it's easy to look fearsome when your opponents are overmatched.

To Aoki's credit, his employers weren't shy about throwing him to the wolves. During a tremendous run in the DREAM promotion, he faced Joachim Hansen, Caol Uno, Eddie Alvarez, and Gesias "JZ" Cavalcante -- beating them all and displaying a world-class grappling game that defies description.

That history led to high expectations when Aoki made his U.S. debut in Strikeforce, facing the lightweight champion Melendez. But whatever magic Aoki could conjure in his country didn't seem to make the trip over. He put Melendez in no danger whatsoever, and instead faced 25 minutes of excruciating offense in a ridiculously one-sided fight.

If there is such a thing as a hometown advantage in MMA, Aoki certainly benefits from it: he won his next six fights in Japan.

3. Hector Lombard (vs. Tim Boetsch, UFC 149, 2012)

From his April 2009 debut to spring 2012 exit, Lombard delivered 13 wins under the Bellator umbrella with no losses. (He would take three of those fights in other promotions, with the organization's blessing.) Despite the fact that the competition was underwhelming, Lombard's record and marble-carved physique led to a lucrative UFC deal and the hint of a showdown with Anderson Silva. Boetsch, despite going on an impressive win streak at middleweight, was supposed to be a warm-up.

Owing to injury, nerves, or just getting the losing end, Lombard was unable to make any kind of statement against Boetsch, who landed more significant strikes to earn a split-decision victory. An anomaly? Possibly. Lombard went on to destroy Rousimar Palhares last December. But you only get one chance to make a first impression.

2. Bas Rutten (vs. Tsuyoshi Kohsaka, UFC 18, 1999)

Rutten was a star of Pancrase, a Japanese fight league that didn't adopt striking with a closed fist until late into its existence. During his tenure, he was a tenacious fighter even with palm strikes. In signing with the UFC, the idea that he could now exchange proper punches seemed like a good reason to keep a plastic surgeon on standby. UFC didn't ignore that potential: the poster for the event discreetly billed him as "The World's Greatest Martial Artist."

Against Kohsaka, a durable grappler who cut his teeth in RINGS, Rutten didn't quite look the part. He was often shut down by Kohsaka's aggression and takedowns, and it wasn't until an overtime round that he finally turned on an offensive flurry that seemed to warrant his advertising copy. (Rutten would compete only once more in the UFC, beating Kevin Randleman in a controversial decision for the heavyweight title.)

1. Mauricio "Shogun" Rua (vs. Forrest Griffin, UFC 76, 2007)

Rua's run in PRIDE was nothing short of Hall of Fame material. At 12-1 -- his only loss the result of a poor break fall that left him with a broken arm -- Rua tore through Quinton Jackson, Antonio Rogerio Nogueira, Alistair Overeem and Ricardo Arona to be crowned the 2005 Grand Prix Champion. At the time of PRIDE's demise and Jackson's KO of Chuck Liddell, Rua was considered by many to be the top light heavyweight in the world.

Griffin, meanwhile, had been alternating wins and losses after winning the first season of "The Ultimate Fighter," and was largely derided as a "reality TV star" who had little business against elite competition. At the time of the bout's announcement, Rua's fans seemed annoyed he wouldn't be getting to work up more of a sweat. A title bout with Jackson seemed inevitable.

But the Rua that dominated the PRIDE ring post to post was nowhere to be found against Griffin, who endured some early aggression before getting Rua's back and sinking in a rear-naked choke. Was Griffin underestimated, or did Rua fail to shift into second gear? Either way, no one has ever entered the Octagon with more hype -- or left with so little of their reputation left intact.