Jon Jones continued his reign over of the UFC light heavyweight division on Saturday when he defeated Thiago Santos in the UFC 239 main event.

Jones (25-1 MMA, 19-1 UFC) earned a record-tying 13th win in a UFC title fight when he defeated Santos (21-7 MMA, 13-6 UFC) by split decision in the pay-per-view headliner, which took place at T-Mobile Arena in Las Vegas.

Check below for the top Twitter reactions to Jones’ title defense against Santos at UFC 239.

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We've arrived at the #UFC239 main event and it sees Jon Jones (@JonnyBones) put his light heavyweight title up for grabs against Thiago Santos (@TMarretaMMA). Play-by-play: https://t.co/n0GZ5wacpy pic.twitter.com/XIdlcGpV2y — MMA Junkie (@MMAjunkie) July 7, 2019

Santos fires back with some heavy calf kicks. #UFC239 — Rob Tatum (@RobTatum303) July 7, 2019

“Those are some very small calves.”

– @joerogan — Lando Vannata (@GroovyLando) July 7, 2019

Biggest trait in Jones's striking: single shot, high variance. He doesn't throw a ton of combos. Instead he prefers to throw strikes that don't pattern each other, one at a time. — Luke Thomas (@lthomasnews) July 7, 2019

Right by Santos knocks Jones' mouthpiece out. — Kevin Iole (@KevinI) July 7, 2019

First time in awhile we’ve seen Jones have trouble reading an opponent. Very reactive in that first round — Jimmy Smith (@jimmysmithmma) July 7, 2019

Did Santos roll and ankle or something at the end of round 1. Looked like a slight limp to the corner . #UFC239 — Sean O'Connell (@realOCsports) July 7, 2019

1 to Santos — Chael Sonnen (@ChaelSonnen) July 7, 2019

10-9 Santos, but a very close round. The power of Santos makes this fight so much more nerve wracking than the average Jones fight. — Aaron Bronsteter (@aaronbronsteter) July 7, 2019

Santos is definitely competitive in this fight. He is landing his share of kicks/punches so far. Halfway through second round now — Kevin Iole (@KevinI) July 7, 2019

Santos got tagged with a kick from Jones and appeared to lose his balance and go down. Jones wisely didn't come in too aggressively #UFC239 — Brian Martin (@TheBMartin) July 7, 2019

Jones is playing with fire… — Andreas Hale (@AndreasHale) July 7, 2019

Jones tried the bottlecap challenge at the end of the round — Belal Muhammad (@bullyb170) July 7, 2019

Very close Round 2, probably 10-9 Jones because he’s the champ? But Santos had moments that stood out. — Simon Samano (@SJSamano) July 7, 2019

Santos 20-18 — Brett Okamoto (@bokamotoESPN) July 7, 2019

Jon needs to start fighting with a little more urgency/ volume as Santos is up 2 but seemingly hurt his left knee #ufc239 — Sarah Kaufman (@mmasarah) July 7, 2019

Head kick skims up the shoulder from Santos. Jones stalking and lands a hard low kick. Santos returns his own but backs off. Good body kick from Santos. #UFC239 — Bloody Elbow (@BloodyElbow) July 7, 2019

Santos is looking good. Fighting very well. — Krzysztof Soszynski (@KSOSufc) July 7, 2019

Impressive start for Thiago, alot of score cards have him up. Been a long time since we have seen the possibility of Jon fighting down on a score card. #UFC239 — KEN SHAMROCK (@ShamrockKen) July 7, 2019

Two kicks by Jon land, including one to the face — Kevin Iole (@KevinI) July 7, 2019

Jones cuts Santos and smells blood literally and figuratively. The champ pressing now. — RJ Clifford (@RJcliffordMMA) July 7, 2019

29-28 Santos through three — Brett Okamoto (@bokamotoESPN) July 7, 2019

Rd 3- JJ — Chael Sonnen (@ChaelSonnen) July 7, 2019

Starting to open up as Santos wearing down… — Jimmy Smith (@jimmysmithmma) July 7, 2019

Injury or not great fight main event ! Couple of bad asses getting it ! — Platinum Mike Perry (@PlatinumPerry) July 7, 2019

Thiago is a wounded animal now and jones isn’t gonna let him off the hook — Belal Muhammad (@bullyb170) July 7, 2019

Jones is in the zone — Luis Antonio Pena (@violentbobross) July 7, 2019

Santos fading now, he’s a pictogram behind Jon in these exchanges. Still has power but a little less pop than the champ at this point. — Bryan Hamper (@BryanHamper) July 7, 2019

Jones attacking the left knee of Santos which has buckled a few times in this fight. #UFC239 — Sherdog by Mandatory (@sherdogdotcom) July 7, 2019

Rd 4- JJ — Chael Sonnen (@ChaelSonnen) July 7, 2019

That's a tough round to score. Probably the toughest of the fight. I'll give it to Jones, have it tied two rounds apiece going to the fifth. — Brett Okamoto (@bokamotoESPN) July 7, 2019

I believe it’s not the acl @joerogan I think it’s his meniscus — Platinum Mike Perry (@PlatinumPerry) July 7, 2019

This is a great fight these fans are just spoiled — Belal Muhammad (@bullyb170) July 7, 2019

http://twitter.com/kennyflorian/status/1147726332421275649

Santos finding new life in the 5th. Jon needs to dig deep and find that pulsating effect. — Bryan Hamper (@BryanHamper) July 7, 2019

And new — Chael Sonnen (@ChaelSonnen) July 7, 2019

I know how this is gonna go . WOW #UFC239 — Derek Brunson (@DerekBrunson) July 7, 2019

I had to look through twitter feed to see if I was the only one that thought santos won. I am not the only one — Matt Brown (@IamTheImmortal) July 7, 2019

Regardless, I'll tell you this: Thiago Santos is THE. FUCKING. SHIT. — Fernanda Prates (@NandaPrates_) July 7, 2019

I can’t believe I’m saying this but I have Santos winning 3-2 but mostly because Jon Jones refused to go in for the kill. Santos on one leg was a scary man. #UFC239 — Goze (@thegoze) July 7, 2019

Santos fought great but honestly I thought Jones won 4 of those rds — James Vick (@JamesVickMMA) July 7, 2019

Well, Jones got the nod but looked a bit flustered and looked very vulnerable against an injured fighter. — Jimmy Smith (@jimmysmithmma) July 7, 2019

I also think had @TMarretaMMA not blown his knee would’ve been different result Congrats to both show of technical striking and toughness . — Raphael Assuncao (@RaphaAssuncao) July 7, 2019

Jon Jones retains his title via split decision. — Luke Thomas (@lthomasnews) July 7, 2019

Hats off to @TMarretaMMA the only man in a while to take @JonnyBones to a split decision. #ufc239 — Julian marquez (@JMarquezMMA) July 7, 2019

Jon Jones defeats Thiago Santos by split decision and ties the record for most title wins in UFC history. #UFC239 pic.twitter.com/P9fe2zpEk4 — Mike Bohn (@MikeBohnMMA) July 7, 2019

#UFC239 results: Jon Jones (@JonnyBones) def. Thiago Santos via split decision (47-48, 48-47, 48-47) – to defend light heavyweight title Full play-by-play: https://t.co/ozyCH1MUwZ pic.twitter.com/WCzZnimtOf — MMA Junkie (@MMAjunkie) July 7, 2019

Champ Jon Jones certainly didn't leave #UFC239 unscathed, and he was helped from the cage following the split-decision result. Twitter reacts to the win: https://t.co/MOBRC6Hg7Y pic.twitter.com/h2jD6uicmw — MMA Junkie (@MMAjunkie) July 7, 2019

For complete coverage of UFC 239, check out the UFC Results.