I don't know what I can write in this space to do justice to what we saw tonight. We knew going in this was a special fight card. Little did we know we'd be witnesses to some of the best action of the year and maybe in history.

A top Japanese prospect soared after a tough challenge, Team Alpha Male turned in yet another fighter to watch, a Russian prospect dazzled us with his ability, two women put on a sensational scrap, a Brazilian heavyweight proved he retired too early, and a flyweight showed everyone he's still at the top of the division.

Perhaps most importantly, two Mexican-American lightweights put on one of the most insane displays of talent and grit while another Mexican-American demonstrated he's the best heavyweight on the planet.

These are the tweets of the best UFC card of the year and one of the best in recent memory.

THE HEAVYWEIGHT SHOWDOWN

Damn Cain so good that fights get stopped after people try & fail to submit him. Like "ok, that was a good try but that’s enough…" #UFC166 — Marcelino Evil (@KCBanditMMA) October 20, 2013

Junior Dos Santos had a heart the size of South America and a chin from HELL!!!!! What an amazing night — Dana White (@danawhite) October 20, 2013

Great fight what a war — Tim Sylvia (@timsylviamma) October 20, 2013

Great main event @ufc Dos Santos has got some chin on him. Took so much damage in both those two fights — Tom Kong Watson (@TomKongWatson) October 20, 2013

JDS's corner should of stopped that in rd 3 real fighters never quit and will die. #UFC166 — Justin Buchholz (@jbmma155) October 20, 2013

This was the night of brain damage. — Tim Kennedy (@TimKennedyMMA) October 20, 2013

I love JDS attitude. Can never root against this guy. — Aaron Riley (@aaronrileymma) October 20, 2013

Cigano total respeito! Sinistro dmais! — Cosmo Alexandre (@CosmoAlexandre) October 20, 2013

DC GETS REVENGE

Those who doubted my call of Cormier dominating the Strikeforce tourney and moving on to destroy the UFC are hiding. — Pat Miletich (@patmiletich) October 20, 2013

Big country's chin is as good as it gets! — Chris Weidman (@ChrisWeidmanUFC) October 20, 2013

Athleticism and speed was the difference! Great showing of technique by @dc_mma ! @CowboyWrestling @OSUAthletics — Mark Muñoz (@mark_munoz) October 20, 2013

Is it a no-contest if Roy is blinded by his own rat tail after missing a punch? — Jimmy Smith (@jimmysmithmma) October 20, 2013

FIGHT OF THE YEAR

told ya #mexicanbackyardbrawl :D Loved it! — Julianna Peña (@VenezuelanVixen) October 20, 2013

Holy Fuck, it's like you can see Diego's eye through his cut. #UFC166 he makes dudes that are tough as nails look like BitchAss niggas.😨 — Yves Edwards (@thugjitsumaster) October 20, 2013

God reached down and held those fighters up from being knocked out for the fans. — Cody Bollinger (@CodyBollinger) October 20, 2013

We all need to say thank you to that Doctor for not stopping that fight. #crazycut pic.twitter.com/O0KiJCecMA — Chris Clements (@menaceclements) October 20, 2013

If ur not a @ufc fan I promise u you are now fucking speechless I'm still shocked :) love this sport 👊💪 #HEART — Manny Gamburyan (@MannyGamburyan) October 20, 2013

Huge props to Sanchez and Melendez!!! What a WAR — Jason Lambert (@MMA_Punisher) October 20, 2013

Diego has to have the toughest chin ever! Holy crap he got hit so many times! — Ben Askren (@Benaskren) October 20, 2013

Diego Sanchez must of got a hold of that Blue meth in New Mexico! — Shawn Bunch (@BunchTheGreat) October 20, 2013

THIS IS THE GATTI-WARD OF MMA!! — Jimmy Smith (@jimmysmithmma) October 20, 2013

If ur not a @ufc fan I promise u you are now fucking speechless I'm still shocked :) love this sport 👊💪 #HEART — Manny Gamburyan (@MannyGamburyan) October 20, 2013

So proud of mah brother @GilbertMelendez fotn ur tha man Gill..fight of the year — Nathan Diaz (@NateDiaz209) October 20, 2013

Fight of all eternity #UFC166 — Jordan Johnson (@doublejmma) October 20, 2013

WOW! Honored That I got to watch that fight live! I'd want another round but I think someone would die! Crazy! #UFC166 — Mike Quick Swick (@officialswick) October 20, 2013

I want to be in battles like that. — The Diamond (@DustinPoirier) October 20, 2013

Wow how do you not love Diego Sanchez and Gilbert Melendez!! Wow what a fight 👊👊👊💥💢 woohoo — Kyle Noke (@KyleNoke) October 20, 2013

Fights like this remind you why you love this sport. — Jon Fitch (@jonfitchdotnet) October 20, 2013

That's the way u should fight when u need a KO in the 3rd to win — Chuck Liddell (@ChuckLiddell) October 20, 2013

I think I'm getting drunk tonight thank to @GilbertMelendez and Diego :) time for the main event guys ✌️ — Manny Gamburyan (@MannyGamburyan) October 20, 2013

"GILBERT MILENDEZ COULD HAVE MADE THAT AN EASIER FIGHT HE CHOSE TO MAKE IT ENTERTAINING" - JO ROGAN -HE CHOSE TO MAKE THE FIGHT LAST LONGER — Pat Barry (@HypeOrDie) October 20, 2013

A RETIREE RETURNS

BANG!! Huge shot by Gonzaga!! Jordan never saw it coming — Jimmy Smith (@jimmysmithmma) October 20, 2013

I love @savageshawn Can't wait for you to get back to Florida man #UFC166 Keep your head up champ! — Nik Lentz (@NikLentz) October 20, 2013

@savageshawn your still a beast we all have set backs love ya bro see u back at the gym — Tim Sylvia (@timsylviamma) October 20, 2013

DODSON CAN CRACK

Dodson is SO talented and Montague is TOUGH as nails!!! — Dana White (@danawhite) October 20, 2013

Dodson has a better chance at hurting himself after a fight than in a fight ! #UFC166 — Derek Brunson (@DerekBrunsonMMA) October 20, 2013

Not sure there is a 125lber out there who has the pop that @JohnDodsonMMA has. Freaky power! #UFC166 — Kenny Florian (@kennyflorian) October 20, 2013

Speed kills;-) Dodson looked SHARP — Jimmy Smith (@jimmysmithmma) October 20, 2013

What? @JohnDodsonMMA got another ko, hell ya — Steven Siler (@Stevesiler) October 20, 2013

WEIRD SCORING

Big day for #teambarbarian I won my fight but more importantly Christian scored two touchdowns at flag football! — Tim Boetsch (@TimBoetsch) October 20, 2013

Holy wow! 30-26 Boetch? What the hell was that judge watching. No way he won 3 rds. Houston that judge just embarrassed our city. 😒 — Yves Edwards (@thugjitsumaster) October 20, 2013

2 judges gave boetsch every round. I would of gave CB the first 2 if I'm honest.. @nickthetooth ??? — michael (@bisping) October 20, 2013

IDK about that one. I had Dollaway #UFC166 — Nick Newell (@NotoriousNewell) October 20, 2013

I like both guys but I was shocked by the Dollaway/Boetsch decision. I really thought that CB won 3 rounds to 0. — Ben Askren (@Benaskren) October 20, 2013

CUBANO GOT HANDS

Congrats @hectorlombard great KO — Chuck Liddell (@ChuckLiddell) October 20, 2013

Huge win for Lombard, heart goes out to Nate, one of the sports great guys — Brian Stann (@BrianStann) October 20, 2013

I want to see @adlanamagov vs @HectorLombard SOOO bad. Unlimited violence. — Tim Kennedy (@TimKennedyMMA) October 20, 2013

dang @HectorLombard way to get after it! nicely done. beautiful. — Julianna Peña (@VenezuelanVixen) October 20, 2013

THE LADIES BROUGHT IT

I still think girls have No Fear. They just stand and fight — Cowboy Cerrone (@Cowboycerrone) October 20, 2013

Kaufman just punched Jessica Eye's eye ! #UFC166 — Derek Brunson (@DerekBrunsonMMA) October 20, 2013

Thank you to EVERYONE WHO SUPPORTED me in this fight !! — Jessica Eye (@jessicaevileye) October 20, 2013

CHECHEN GOT SKILLZ

U win some u lose some,still all the glory goes to God, I trained hard & did everything I could,& I always progress from a loss. I'll b back — TJ Waldburger (@TJWaldburger) October 20, 2013

TUF BATTLES

Thank you to everyone for your support. I'm sorry I couldn't pull out the win. Back to the drawing board... — Mike Rio (@MikeRioMMA) October 20, 2013

TEAM ALPHA MALE ROLLS ON

Yes!!!!!!! @TouchyFili looked amazing!!! Congratulations homie you deserve it — TJ Dillashaw (@TJDillashaw) October 19, 2013

"Touchy" Filli is my new favorite nickname in MMA #UFC166 — Nick Newell (@NotoriousNewell) October 19, 2013