Quick Definition
Bad blood is genuine dislike between two fighters, distinct from the trash talk and promotional hype built around a fight.
What is bad blood?
The phrase started as a general expression for old hostility between people, families, or groups, and it crossed into combat sports because fight promotion runs on the same emotional fuel. When two fighters carry real friction into a bout, whether from a training camp split, a personal insult, or a rivalry that outlived a season of coaching against each other, fans and media label it bad blood.
The term matters in MMA because promotions treat it as a selling point. A fight between two athletes with no history is a sporting contest. A fight between two people who genuinely dislike each other becomes a story, and stories move tickets and pay-per-view buys.
Bad blood is often confused with trash talk. Trash talk is the performance: insults thrown at a press conference or fired off on social media. Bad blood is the feeling underneath it.
A fighter can trash talk an opponent they respect. Genuine bad blood can also exist between two fighters who rarely say a cross word to each other in public.
How it shows up before a fight
Bad blood plays out in fairly predictable places: press conferences, weigh-ins, staredowns, and social media threads that spill into official pre-fight coverage. Fighters with real friction tend to break the usual pleasantries. They skip the traditional face-off handshake, crowd each other’s space past what security likes, or bring up personal details that have nothing to do with the fight itself.
Sometimes it goes further. In 2014, a confrontation between Jon Jones and Daniel Cormier in the MGM Grand hotel lobby turned into a shoving match that helped build one of the most talked-about fights of that UFC era. Moments like that aren’t staged for cameras. Two fighters who already dislike each other end up standing close together with cameras nearby, and things escalate on their own.
None of this requires a fighter to say anything specific. Some of the most convincing bad blood shows up as silence: a fighter who won’t look at their opponent during a staredown, or one who answers every question about the other with the shortest possible sentence.
Real bad blood vs. manufactured rivalry
Fans have gotten better at spotting the difference, and fighters have started admitting the split openly. Former featherweight champion José Aldo once described his relationship with Conor McGregor as friendly away from cameras, joking that McGregor’s edge only showed up when a recorder was nearby. That’s manufactured rivalry: real people, performed heat, aimed at selling a fight.
Genuine bad blood tends to look different. When Ronda Rousey beat Miesha Tate at UFC 168 in December 2013, Tate offered a post-fight handshake and Rousey refused it, walking away instead. Rousey later said she doubted Tate would have made the same gesture with no one watching, which points to the real difference between the two categories: genuine hostility survives the absence of an audience, not just its presence.
| Signal | Real bad blood | Manufactured rivalry |
|---|---|---|
| Off-camera behavior | Hostility continues in private | Fighters are cordial once filming stops |
| Consistency | Stays the same fight after fight, year after year | Appears mainly around fight announcements |
| Physical contact | Can include shoving, skipped handshakes, security stepping in | Limited to scripted insults and staredowns |
| Fighter admissions | Rarely softened after the fact | Sometimes later called “just business” |
The split shows up in real time, too. When Diego Lopes and Yair Rodriguez traded heated words at a UFC 314 press conference in 2025, some fans dismissed it as promotional theater. UFC commentator Jon Anik pushed back publicly, arguing it wasn’t fabricated and noting that officials generally discourage fighters who aren’t even booked against each other from clashing at press events, since that isn’t something the promotion typically wants.
Common misconceptions
Not every prefight insult means two people hate each other. Trash talk is often marketing copy dressed up as an opinion, and Aldo and McGregor reportedly got along fine away from the cameras despite trading plenty of it. Loud words don’t automatically mean a real feud.
The reverse assumption causes just as much confusion: that manufactured rivalry means the fight itself isn’t legitimate. The animosity can be theater while the competition stays completely real. A fighter can perform hatred for the cameras all week and still throw everything they have once the cage door closes.
There’s also a tendency to assume genuine bad blood always escalates into something dramatic outside the cage. Most of it doesn’t. Real animosity between fighters usually looks like clipped answers in interviews and a refusal to share air time, not confrontations that make headlines.
Why promotions lean on bad blood
The business case is straightforward. UFC 202, the August 2016 rematch between Conor McGregor and Nate Diaz, drew roughly 1.65 million pay-per-view buys, a UFC record at the time, according to reporting from MMA Fighting. The two fighters had a documented history of dislike dating back to their first meeting, and a pre-fight press conference that ended in a bottle-throwing scuffle only reinforced the sense that the animosity was real.
There’s research behind why this works on fans and fighters alike. A New York University study published in October 2025 found that fighters who receive genuine trash talk during competition often respond with more aggression and a sharper focus on beating that specific opponent, not just winning. The same research flagged a downside: that heightened aggression can also make rule-breaking more likely.
Promotions understand this well enough to keep building fight cards around it, and fans keep responding, whether they end up buying the bad blood or rolling their eyes at it.
Frequently Asked Questions
What’s the difference between bad blood and trash talk?
Trash talk is the public performance, insults and jabs delivered for an audience. Bad blood is the underlying feeling, which can exist with or without any trash talk at all.
Is bad blood in MMA usually real or staged?
Both happen. Some rivalries involve genuine dislike that predates the fight; others are built by promotions and media to sell tickets, with the fighters getting along fine away from cameras.
Can manufactured rivalry turn into real bad blood?
Yes. Repeated trash talk, especially anything involving family or personal history, can turn a scripted rivalry into a genuine one by the time fighters actually meet.
Why do promotions want bad blood between fighters?
Because it sells. Fights between people with real or perceived history consistently draw more attention, and often more pay-per-view buys, than fights between strangers with similar records.
Does bad blood change how a fight plays out?
It can raise the intensity, but it doesn’t guarantee a more competitive fight. Skill and preparation still decide what happens inside the cage.
Sources
- Merriam-Webster. “Bad Blood.” Accessed September 2026.
https://www.merriam-webster.com/dictionary/bad%20blood - Cambridge Dictionary. “Bad Blood.” Accessed September 2026.
https://dictionary.cambridge.org/dictionary/english/bad-blood - Wikipedia. “UFC 202.” Accessed September 2026.
https://en.wikipedia.org/wiki/UFC_202 - Bleacher Report. “UFC 182: Jon Jones, Daniel Cormier and a History of the Blood Feud.” Accessed September 2026.
https://bleacherreport.com/articles/2316406-ufc-182-jon-jones-daniel-cormier-and-a-history-of-the-blood-feud - MMAWeekly.com. “Bad Blood, Good Business: The Story of Rivalries Fueling the Biggest Fights.” Accessed September 2026.
https://www.mmaweekly.com/bad-blood-good-business-ufc-25-years-in-short-video - Sportskeeda. “Jon Anik Dismisses Notion of Diego Lopes, Yair Rodriguez Rivalry Being ‘Promotional Fabrication.'” Accessed September 2026.
https://sportskeeda.com/mma/news-jon-anik-dismisses-notion-diego-lopes-yair-rodriguez-rivalry-promotional-fabrication-fiery-exchange-ufc-314-presser - Bloody Elbow. “UFC Women’s Champ Ronda Rousey Doesn’t Believe Miesha Tate’s Handshake Offer Was Sincere.” Accessed September 2026.
https://bloodyelbow.com/2014/01/09/ufc-womens-champ-ronda-rousey-miesha-tate-handshake - Fighters Only. “Trash Talk Feature, Issue 222.” Accessed September 2026.
https://fightersonly.com/article/ext/91838
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