The UFC brings a major event back to Los Angeles for the first time in more than three years on Saturday with UFC 227, which takes place at Staples Center and airs on pay-per-view following prelims on FX and UFC Fight Pass.

Two championship rematches take center stage on the card, and the main event features no shortage of bad blood. Bantamweight champion T.J. Dillashaw (15-3 MMA, 11-3 UFC) faces former teammate-turned-rival Cody Garbrandt (11-1 MMA, 6-1 UFC) for the second time when they square off in the main event.

The co-headliner sees the most successful champion in UFC history go back to work when flyweight champ and pound-for-pound great Demetrious Johnson (27-2-1 MMA, 15-1-1 UFC) looks to extend his record-setting title defense streak when he takes on Henry Cejudo (12-2 MMA, 6-2 UFC) more than two years after winning their first meeting.

For more on the numbers behind the UFC 227 lineup, check below for 55 pre-event facts.

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Main event

Dillashaw is one of eight fighters in UFC history to have two title reigns in a single weight class. Randy Couture, Tim Sylvia, Cain Velasquez, Matt Hughes, Georges St-Pierre, Jose Aldo and Dominick Cruz also accomplished the feat.

Dillashaw is one of seven cast members from “The Ultimate Fighter” to win an undisputed UFC championship.

Dillashaw competes in his 15th UFC bantamweight bout, tied with Urijah Faber for the most appearances in divisional history.

Dillashaw’s 11 victories in UFC bantamweight competition are tied with Raphael Assuncao for most in divisional history.

Dillashaw’s 11 victories in UFC/WEC bantamweight competition are tied with Assuncao and Faber for second most in divisional history behind Cruz (12).

Dillashaw’s seven stoppage victories in UFC bantamweight competition are the most in divisional history.

Dillashaw’s six knockout victories in UFC bantamweight competition are most in divisional history.

Dillashaw’s seven knockdowns landed in UFC bantamweight competition are second most in divisional history behind Garbrandt (eight).

Dillashaw is one of two fighters in UFC history to land 100 or more significant strikes in five consecutive fights. Joanna Jedrzejczyk also accomplished the feat.

Dillashaw scored the latest head-kick knockout finish in UFC history when he stopped Joe Soto at the 2:20 mark of Round 5 at UFC 177.

Dillashaw is one of two fighters in UFC history to earn two or more fifth-round stoppage victories. Flyweight champ Johnson also accomplished the feat.

Dillashaw lands 5.26 strikes landed per minute in UFC bantamweight competition, the second highest rate in divisional history behind Thomas Almeida (5.66).

Dillashaw’s 12 submission attempts in UFC bantamweight competition are tied with Alex Caceres for most in divisional history.

Dillashaw’s seven fight-night bonuses for UFC bantamweight bouts are the most in divisional history.

Garbrandt competes for just the second time in the past 20 months.

Garbrandt is the only UFC bantamweight champion to lose the title before making a successful defense.

Garbrandt has earned nine of his 11 career victories by knockout. That includes four of his six UFC wins.

Garbrandt’s eight knockdowns landed in UFC bantamweight competition are the most in divisional history.

Garbrandt lands 1.81 knockdowns per 15 minutes of fighting in UFC bantamweight competition, the highest rate in divisional history.

Co-main event

Johnson owns or is on the verge of owning several flyweight and overall UFC records, all of which can be viewed on his complete UFC career stat sheet. It includes the aforementioned 12th consecutive title defense.

Cejudo is one of three Olympic gold medalists to fight in the UFC, along with Kevin Jackson and Mark Schultz. He earned gold in freestyle wrestling at the 2008 Summer Olympics.

Cejudo is the only Olympic gold medalist to fight in the UFC since the organization was purchased by parent company Zuffa.

Cejudo is the only Olympic gold medalist to fight for a UFC title in modern UFC history.

Cejudo defends 68.8 percent of all opponent significant strike attempts in UFC flyweight competition, the best rate in divisional history.

Cejudo has landed at least one takedown against seven of his eight UFC opponents.

Cejudo has earned five of his six UFC victories by decision.

Remaining main card

Cub Swanson (25-9 MMA, 10-5 UFC) competes in his 24th UFC/WEC featherweight bout, the most appearances in combined divisional history.

Swanson’s 15 victories in UFC/WEC featherweight competition are second most in combined divisional history behind Aldo (17).

Swanson’s 10 victories in UFC featherweight competition are third most in divisional history behind Max Holloway (14) and Darren Elkins (13).

Swanson’s past five victories have come by decision. He hasn’t earned a stoppage since July 2013.

Swanson’s six knockdowns landed in UFC featherweight competition are tied for fourth most in divisional history behind Jeremy Stephens (11), Holloway (eight) and Chad Mendes (seven).

Swanson and Artem Lobov combined for 332 significant strikes landed at UFC Fight Night 108, the second most ever in a UFC fight behind the 334 between Nate Diaz and Donald Cerrone and UFC 141.

Swanson’s 209 significant strikes landed against Lobov are the single-fight record for a UFC/WEC featherweight bout.

Swanson’s 11 fight-night bonuses for UFC/WEC featherweight bouts are the most in combined divisional history.

Swanson’s seven fight-night bonuses in UFC featherweight bouts are the most in divisional history.

Polyana Viana (10-1 MMA, 1-0 UFC) has earned all of her career victories by stoppage.

Thiago “Marreta” Santos’ (17-6 MMA, 9-5 UFC) eight knockout victories in UFC middleweight fights are tied with Anderson Silva for most in divisional history.

Santos’ eight knockouts since 2014 in UFC competition are second most in the company behind Derrick Lewis (nine).

Santos’ four knockout victories stemming from kicks in UFC competition are tied with Edson Barboza and Vitor Belfort for second most in company history behind Cerrone (six).

Santos’ nine knockdowns landed in UFC middleweight competition are tied for third most in divisional history behind Silva (13) and Nate Marquardt (12).

Santos lands 1.84 knockdowns per 15 minutes of fighting in UFC middleweight competition, the best rate among active fighters in the weight class.

Santos defends 66.1 percent of all opponent significant strike attempts in UFC middleweight competition, the best rate among active fighters in the weight class.

Preliminary card

Pedro Munhoz’s (15-3 MMA, 5-3 UFC) three submission victories in UFC bantamweight competition are tied for second most in divisional history behind Urijah Faber (six).

Brett Johns’ (15-1 MMA, 3-1 UFC) has earned one of two calf-slicer submissions in UFC history. Charles Oliveira also accomplished the feat.

Johns’ 30-second submission of Joe Soto at the TUF 26 Finale was second fastest in UFC/WEC combined bantamweight history behind Patrick Williams’ 23-second finish at UFC 188.

Johns’ 11 takedowns landed at UFC Fight Night 99 are tied for the single-fight record for a UFC/WEC bantamweight bout.

Ricky Simon’s (13-1 MMA, 1-0 UFC) victory at the 5:00 mark of Round 3 at UFC Fight Night 128 is the latest stoppage in a three-round UFC fight.

Alex Perez (20-4 MMA, 2-0 UFC) has earned 11 of his 20 career victories by decision.

Perez is one of 13 fighters in UFC history to earn a submission victory by anaconda choke. He accomplished the feat at UFC Fight Night 123.

Ricardo Ramos (11-1 MMA, 2-0 UFC), 22, is the youngest of the 24 fighters scheduled to compete at the event.

Ramos is one of two fighters in UFC history to earn a knockout victory stemming from a spinning back elbow. He accomplished the feat at UFC 217. Dong Hyun Kim is the other fighter to win with the technique.

Danielle Taylor (9-2 MMA, 2-2 UFC), who is 5-feet tall, is the shortest fighter on the UFC roster.

Weili Zhang (16-1 MMA, 0-0 UFC) makes her UFC debut on a 16-fight winning streak. She hasn’t suffered a defeat since her MMA debut in November 2013.

Zhang’s 16-fight MMA winning streak is the longest among female fighters on the UFC roster.

For more on UFC 226, check out the UFC Rumors section of the site.

FightMetric research analyst and live statistics producer Michael Carroll contributed to this story. Follow him on Twitter @MJCflipdascript.