Sherdog.com’s Pound-for-Pound Top 10

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When Demetrious Johnson drags his opponents into deep waters, they don’t come back.

Such was the case at UFC 186, where the first and only UFC flyweight champ defended his belt for the sixth time in an all-out rout of Japanese puncher Kyoji Horiguchi. Johnson overwhelmed the challenger on the ground, using the speed and pressure that have defined his reign to score takedowns and set up a literal last-second armbar finish. What’s more, as the bout wore on into the final frame and Horiguchi was visibly drained of fight, “Mighty Mouse” still looked as fresh as he had in the opening round.

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While there remain a few potential challengers lurking in the top 10, Johnson’s dominance of the division over the past three years can hardly be overstated. Since coming up short in a bid for the bantamweight title, the 28-year-old has gone unbeaten in nine bouts at 125 pounds. He has taken out legitimate contenders, fringe contenders, hot prospects and even an opponent later found to be using PEDs. Johnson’s latest conquest moves him to No. 3 on the pound-for-pound list, above less-active middleweight champ Chris Weidman.

Related: Sherdog Divisional Rankings

1. Jon Jones (21-1)

The UFC’s 205-pound king continues to find ways to beat all those placed before him. At UFC 182, it was Daniel Cormier who clashed with Jones after a protracted battle of words in what was expected to be the hardest fight of the Jackson-Wink MMA fighter’s title reign. Though “DC” did not go down quietly, Jones neutralized the wrestler’s takedown attempts and used his freakish reach to punish Cormier with strikes, both at range and in the clinch. Having secured a five-round unanimous decision -- with all three judges giving Jones four rounds to Cormier’s one -- “Bones” stands as the most decorated light heavyweight champ in UFC history, with eight consecutive title defenses. Jones will attempt to make it nine in May, when he faces fearsome puncher Anthony Johnson at UFC 187.

2. Jose Aldo (25-1)

Aldo was unable to score a second knockout of Chad Mendes in their UFC 179 rematch, but the end result was perhaps even more satisfying and more indicative of Aldo’s status as a pound-for-pound great. The featherweight ruler battled through more than a little adversity across his 25 minutes with Mendes, surviving an uppercut-induced knockdown to kick things into another gear and outclass the Team Alpha Male standout on the feet down the stretch. After seven straight title defenses, Aldo looks to be headed for the biggest fight of his career, as “Scarface” will attempt to derail the hype train of Irish standout Conor McGregor at UFC 189 in July.

3. Demetrious Johnson (22-2-1)

Johnson vanquished yet another challenger at UFC 186, this time taking out overmatched prospect Kyoji Horiguchi. The flyweight ace styled on Horiguchi for the better part of five rounds with relentless takedowns and top control before securing a nasty armbar in the final moments of the fight. The victory was Johnson’s eighth straight and sixth in defense of his title at 125 pounds, where he has yet to lose a bout. His ledger in that span includes wins over Joseph Benavidez (twice) and Ian McCall, as well as John Dodson, a rematch with whom seems likely to materialize as Johnson continues to eliminate contenders.

4. Chris Weidman (12-0)

The “All-American” showed his all-around skills with a decisive title defense against ex-light heavyweight champion Lyoto Machida at UFC 175. While Machida was able to tag the Serra-Longo Fight Team representative in the waning moments of their five-round encounter, the work Weidman did with his hands, kicks and takedowns through the first four frames was more than enough to retain his UFC middleweight title. The New Yorker’s unblemished résumé includes victories over two of Brazil’s finest fighters -- Machida and Anderson Silva (twice) -- and Weidman will look to add a third when his long-delayed clash with Vitor Belfort finally takes place at UFC 187.

5. Cain Velasquez (13-1)

Velasquez removed any doubt relating to the identity of the best heavyweight in the world by administering a brutal beating to Junior dos Santos at UFC 166. The final bout of the trilogy was never really in doubt, as the American Kickboxing Academy ace dominated in the clinch and rarely allowed his opponent any space to unleash his formidable boxing. Velasquez dropped his opponent in the third round and earned the stoppage late in the fifth, where dos Santos finally wilted after hitting his head on the canvas following a failed guillotine attempt. Unfortunately, injuries have kept Velasquez from the cage in the year since, but his canceled engagement with now-interim champ Fabricio Werdum has been rescheduled for UFC 188 in Mexico City.

6. Anderson Silva (34-6)

Silva may be the greatest fighter in MMA history, but things are not looking up for “The Spider” at the moment. After breaking his left leg in horrific fashion in a December 2013 rematch with Chris Weidman, it was unclear whether the 40-year-old would ever fight again. Thirteen months later, Silva was back in the cage, earning a five-round unanimous decision over upsized welterweight Nick Diaz in the main event of UFC 183. As it turns out, Silva’s incredible recovery was apparently aided by performance-enhancing drugs. Currently serving a temporary suspension from the Nevada Athletic Commission for failing a pre-fight drug test, Silva is expected to receive a longer punishment at the commission’s next hearing.

7. Rafael dos Anjos (24-7)

At UFC 185, dos Anjos proved that good things come to those who wait when he earned the UFC lightweight title after more than seven years with the organization. For 25 minutes, the well-rounded Brazilian put on a near-perfect performance, dominating the dynamic Anthony Pettis like none before. Dos Anjos has won nine of his last 10 bouts, including a knockout of durable ex-champ Benson Henderson and a decision win against currently streaking contender Donald Cerrone. The shark-infested waters at 155 pounds are never short of challengers champing at the belt -- though dos Anjos would doubtless like to settle the score with the only man to beat him in the past three years: Khabib Nurmagomedov.

8. Anthony Pettis (18-3)

It was a rare sight at UFC 185, where “Showtime” was not only unable to win but really unable to implement any part of his diverse skill set thanks to stifling pressure from challenger Rafael dos Anjos. Pettis tasted defeat for the first time since 2011 and lost his UFC lightweight title in the process, as dos Anjos scored a clean sweep on the judges’ scorecards. Prior to the March 14 loss, Pettis spent three years scoring highlight-reel finish after highlight-reel finish against the cream of the 155-pound crop: Benson Henderson, Donald Cerrone and Gilbert Melendez all fell to the Roufusport fighter in one of the most impressive recent runs the division has seen.

9. Daniel Cormier (15-1)

Entering the sport later than most, Cormier went on a remarkable run during the first five years of his MMA career. The former Olympian took out the likes of Dan Henderson, Josh Barnett, Antonio Silva and Frank Mir, even while spending most of that run as an undersized heavyweight. After dropping to 205 pounds, the 36-year-old was expected to give UFC champion Jon Jones a much-needed run for his money, and that Cormier did in the main event of UFC 182. However, after taking a round from the champion early, Cormier faded down the stretch, overwhelmed by Jones’ size and athleticism, and “DC” was handed his first mixed martial arts loss via five-round unanimous decision. Cormier will attempt to bounce back when he meets fellow wrestler Ryan Bader on June 6 in New Orleans.

10. Robbie Lawler (25-10, 1 NC)

Despite lagging in the middle rounds of his UFC 181 rematch with Johny Hendricks, Lawler charged hard down the home stretch and did enough to earn a split decision, along with the UFC welterweight title. Little was expected of Lawler when he re-entered the Octagon in 2013, having gone 3-5 during his stint with Strikeforce. However, the Pat Miletich protégé has blossomed in his second UFC run, knocking off contenders like Matt Brown and up-and-comers like Rory MacDonald on his way to the belt. Lawler will make his first title defense at UFC 189 in a rematch with MacDonald, who has gone on a three-fight tear since their first meeting.