Sport is nothing without a competitive rivalry and in combat sports in particular, they tend to get more heated than most.
The Octagon has witnessed some incredible feuds that have played out in the UFC over the years and during the promotion's live event hiatus, they've reminded fans of some of the very best.
Via a YouTube video posted on the UFC's official YouTube channel, fight fans can revisit some of the historic moments of bad blood boiling over.
The 11-fight compilation showcases six of the most intense rivalries that have ever taken place in the sport of mixed martial arts.
With five of the feuds taking place over two fights, the rematch between Ronda Rousey and Miesha Tate following their first meeting in Strikeforce lands right in the middle to break up the two chapters to these stories.
Serving as a bookend for the video is arguably the most heated and high-level rivalry in the history of the sport as Jon Jones and Daniel Cormier competed for the light heavyweight title.
The light heavyweight title is also at stake in the second feud as Chuck Liddell and Tito Ortiz helped to bring a whole new level of entertainment to the sport through their incredible history with one another.
This form of storytelling within combat sports took yet another leap during the two clashes between the trash-talking Chael Sonnen and the stoic sniper, Anderson Silva.
Brock Lesnar vs Frank Mir was a battle of giants for the heavyweight throne that ended at the promotion's biggest ever event at the time, UFC 100 in 2009.
Last but not least, the bantamweight title feud between TJ Dillashaw and Cody Garbrandt stemmed from years of tension between two teams following Dillashaw's departure from Team Alpha Male.
Take a look back at how these rivalries came to a head inside the Octagon via the UFC's latest fight compilation on YouTube: