Go ahead and enter Demetrious Johnson's name into ‘Fighter of the Year' discussion. After taking a hard fought split decision from Joseph Benavidez in September 2012, Johnson skipped the pleasantries and shaved 23 minutes off his personal best the second time around, knocking Benavidez out cold with a spectacular first-round KO to cap off Saturday night's UFC on FOX 9 card in Sacramento, CA.

Just because this sport is so ridiculously unpredictable, the unlikely finish marked Johnson's first knockout win since his pre-WEC days in 2010. "Mighty Mouse" has now defended his UFC flyweight title three straight times, improving leaps and bounds every time out, with each performance coming to the tune of millions of viewers on national television. Not bad for a guy who just started training full-time two years ago.

HOLY SHIT NOBODY SAW THAT COMING — John Moraga (@chicanojohn) December 15, 2013

I blinked! — LIZ CARMOUCHE (@iamgirlrilla) December 15, 2013

@MightyMouseUFC is my Pound4Pound. Hume and corner advising him to calm the celebration as a respect to the KO'd opponent. Classy team. — Conor McGregor (@TheNotoriousMMA) December 15, 2013

Awesome KO. — Antonio Pezao Silva (@BigfootSilva) December 15, 2013

Hope @joejitsu is okay. Took a hard shot. He is a tough guy and will be back. Congrats to @ufc — Tyron T-Wood Woodley (@TWooodley) December 15, 2013

Damn!!! @MightyMouseUFC u ain't have to give the last 10 on the chin!!! Damn that was instant — Michael Johnson (@FollowTheMenace) December 15, 2013

Flyweights bringing some power! Might Mouse had the KO of the night! Who would of thought — Darren Elkins (@Darren_Elkins) December 15, 2013

Clean KO by @MightyMouseUFC !!! Oooooooooo lol I think I scared my neighbors by yelling! — Tony Ferguson (@TonyFergusonXT) December 15, 2013

I stand corrected AGAIN. Did not see that coming. Always love seeing a decisive victory in a belt match though. Congrats to the champ. — Kyle Kingsbury (@Kingsbu) December 15, 2013

Thank you to everyone who ruined my nap by waking me up texting me about the fights... don't care @MightyMouseUFC still has what's mine — Ian McCall (@Unclecreepymma) December 15, 2013

Damn!!! Johnson keeps getting better!! — Jimmy Smith (@jimmysmithmma) December 15, 2013

@smiocic he gets pissed when you ask for a PS4 — Mitch Clarke (@MitchClarkeMMA) December 15, 2013

Big John out of position and Slow to get there...Jesus that was brutal — Brian Rogers (@BRogthePredator) December 15, 2013

FABER STEAMROLLS MCDONALD

Urijah looked on point. So consistently bad ass — TJ Grant (@TJ_Grant) December 15, 2013

Big win for us old guys! :) #WECBoys — Cub Swanson (@CubSwanson) December 15, 2013

I'm calling it now, Cali Kid will get what's his in 2014, the UFC bantamweight world title. Congrats coach @UrijahFaber! — Michael Chiesa (@MikeMav22) December 15, 2013

If you were playing the "Every Time They Credit Bang Ludwig" drinking game you'd be fucked up by now. — Jimmy Smith (@jimmysmithmma) December 15, 2013

Awesome display of #mma @UrijahFaber sealed off the fight w/ a nice guillotine!!! Clean! @UFC — Tony Ferguson (@TonyFergusonXT) December 15, 2013

Oh wow !! What a performance by @UrijahFaber would love my rematch before he challenges for the tittle again! — Raphael Assuncao (@RaphaAssuncao) December 15, 2013

What a finish by Faber! Michael McDonald seems to need that 3 letter word! Great fight!!!!! #UFConFOX9 — Siyar The Great (@SiyarTheGreat) December 15, 2013

@UrijahFaber smells blood like a shark — Nick Newell (@NotoriousNewell) December 15, 2013

Faber ran across the cage punched McDonald & pushed him down like he was at night club & he was dancing with his girl and touching her butt — Brian Rogers (@BRogthePredator) December 15, 2013

@WarMachine170 I use bounce a lot ...shit reminded me of hood club sucker punch — Brian Rogers (@BRogthePredator) December 15, 2013

Does anyone see how @UrijahFaber is throwing his hands in top position yea chad didn't even do that — Will Brooks (@illwillbrooks86) December 15, 2013

Let's all take a moment to thank the WEC — Julie Kedzie (@julesk_fighter) December 15, 2013

Who thinks @UrijahFaber is the best fighter in the UFC to never win a belt? — Jimmy Smith (@jimmysmithmma) December 15, 2013

MAKE IT FIVE STRAIGHT

Not many people gave lentz a shot... Myself included. Dude is tough an improved a ton. Mendez still by UD — TJ Grant (@TJ_Grant) December 15, 2013

People call me a boring wrestler @chadmendes is a boring wrestler. These alpha male fighters — Will Brooks (@illwillbrooks86) December 15, 2013

Fuck you punk ass alpha make fighters soft ass pussies. @chadmendes telling the fight is over trying to not fight anymore fucking punk — Will Brooks (@illwillbrooks86) December 15, 2013

Fuck the @ufc fuck @chadmendes fuck alpha male that's my text to the @ufc — Will Brooks (@illwillbrooks86) December 15, 2013

People can say what they want about me. I'm done being policy correct @chadmendes did nothing bottom line. Bottom line — Will Brooks (@illwillbrooks86) December 15, 2013

Lentz is tough man. He's a hard worker — The Diamond (@DustinPoirier) December 15, 2013

I will be back a new person in my next fight. This is just a minor set back on my road to the title. Thanks for the support everyone! — Nik Lentz (@NikLentz) December 15, 2013

I'm going to apologize for my disrespect to @chadmendes and alpha male. I've had a few drinks I'm all jacked and got a little disrespectful — Will Brooks (@illwillbrooks86) December 15, 2013

LAUZON RIGHTS THE SHIP

Danzig had some solid BJJ and Lauzon absolutely SCHOOLED him in the ground. That is impressive to me — Jimmy Smith (@jimmysmithmma) December 15, 2013

I love how Lauzon is always active and going for subs — Dana White (@danawhite) December 15, 2013

Just donned on me, that was @JoeLauzon first victory by decision. That's crazy impressive! — Brad Tavares (@BradTavares) December 15, 2013

Luzon = Active as fugggg — Nick Newell (@NotoriousNewell) December 15, 2013

Interesting to see Mac Danzig's trunks say "Not for sale". I would sell the space on my eye lids to sponsors. #RickyBobby — Kyle Kingsbury (@Kingsbu) December 15, 2013

You know what REALLY makes a statement about sponsors? A picture of Bailey — Julie Kedzie (@julesk_fighter) December 15, 2013

Super thankful to win tonight… thanks for all the support. Couldn’t have done it without all my guys at @lauzonmma. #trainHardWinEasy — Joe Lauzon (@JoeLauzon) December 15, 2013

CASTILLO VS. BARBOZA, OR, HUNTING FOR THE ELUSIVE 10-8

Barboza should have went for the finish. If the 1st rd was 10-8 like it should be then this fight is a draw. — Dana White (@danawhite) December 15, 2013

One judge scored it right — Dana White (@danawhite) December 15, 2013

I could see Castillo- Barbosa going to a draw. 10-8 rd 1 Castillo then 10-9x2 for Barbosa. Awesome fight! — Sarah Kaufman (@mmasarah) December 15, 2013

Very interesting. I have it a draw 28-28. But I could see Barboza 28-27 if you give him a 10-8 2nd. Knowing these judges though, 29-28 -__- — Kevin Lee (@MoTownPhenom) December 15, 2013

What I tell you? How don't you give Castillo a 10-8 1st round?! What more does a guy have to do. Barboza was better fighter but still. — Kevin Lee (@MoTownPhenom) December 15, 2013

Everybody surprised by this should go back and look at anytime barbosa gets pressured — isaac vallie-flagg (@IKEVF) December 15, 2013

Blood splatters :-) — Julie Kedzie (@julesk_fighter) December 15, 2013