The UFC octagon returns to Louisville, Ky., for the first time in more than 13 years on Saturday with UFC on ESPN 57, which goes down at KFC Yum! Center and airs on ESPN following prelims on ESPN+.
Ranked middleweights meet in the headlining act of the card as former middleweight title challenger Jared Cannonier (17-6 MMA, 10-6 UFC) clashes with surging Frenchman Nassourdine Imavov (13-4 MMA, 5-2 UFC) in a five-round fight.
For more on the numbers behind the main event, as well as the rest of the card, check below for MMA Junkie’s pre-event facts for UFC on ESPN 57.
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Jared Cannonier vs. Nassourdine Imavov
Jared Cannonier

Jared Cannonier
Cannonier is 7-2 since he dropped to the UFC middleweight division in November 2018.
Cannonier is one of 17 fighters in UFC history to win fights in three weight classes. He’s been victorious at middleweight, light heavyweight and heavyweight.
Cannonier is one of two fighters in UFC history to earn knockout victories in three weight classes. Conor McGregor also accomplished the feat.
Cannonier’s 241 significant strikes landed at UFC on ESPN 47 are the single-fight record for a UFC middleweight bout.
Cannonier and Marvin Vettori combined for 394 significant strikes landed at UFC on ESPN 47, the single-fight record for a UFC middleweight bout.
Nassourdine Imavov

Nassourdine Imavov
Imavov competes in his third UFC headliner. He’s 1-1 in previous main events.
Imavov has earned three of his five UFC victories by decision.
Imavov defends 66 percent of all opponent significant strike attempts in UFC middleweight competition, the best rate among active fighters in the weight class.
Dominick Reyes vs. Dustin Jacoby
Dominick Reyes

Dominick Reyes
Dominick Reyes (12-4 MMA, 6-4 UFC) has suffered four consecutive losses after starting his career 12-0.
Reyes’ 29-second knockout of Joachim Christensen at UFC Fight Night 112 marked the second fastest stoppage by any debuting light heavyweight in UFC history behind Ryan Jimmo’s seven-second win at UFC 149.
Dustin Jacoby

Dustin Jacoby
Dustin Jacoby (19-8-1 MMA, 7-5-1 UFC) is 7-3-1 since he returned to the UFC for a second stint in October 2020.
Jacoby lands 6.44 significant strikes per minute in UFC light heavyweight competition, the third-best rate in divisional history behind Carlos Ulberg (7.52) and Jamahal Hill (6.85).
Raul Rosas Jr. vs. Ricky Turcios

Raul Rosas Jr.
Raul Rosas Jr. (8-1 MMA, 2-1 UFC), at 18, became the youngest fighter in history to earn an octagon victory when he won at UFC 282.
Rosas Jr. has earned seven of his eight career victories by stoppage. That includes both of his UFC wins.
Miguel Baeza vs. Punahele Soriano

Miguel Baeza
Miguel Baeza (10-3 MMA, 3-3 UFC) returns to competition for the first time since April 16, 2022. The 784-day layoff it eh longest of his nearly nine-year career.
Baeza has suffered three consecutive losses after starting his career 10-0.
Punahele Soriano (9-4 MMA, 3-4 UFC) drops to the UFC welterweight division after spending his previous seven octagon appearances at middleweight.
Thiago Moises vs. Ludovit Klein

Thiago Moises
Thiago Moises (18-7 MMA, 7-5 UFC) has earned one of 17 stoppage victories in UFC history stemming from leg kicks. He accomplished the feat at UFC Fight Night 239.
Ludovit Klein (21-4-1 MMA, 5-2-1 UFC) five-fight UFC unbeaten streak at lightweight is tied for the second-longest active streak in the division behind Islam Makhachev (13).
Klein is one of four fighters in UFC history to earn a knockout stemming from a front kick to the body. Alexander Volkov, Dan Hooker and Siyar Bahadurzada also accomplished the feat.
Brad Katona vs. Jesse Butler

Brad Katona
Brad Katona (13-2 MMA, 3-2 UFC) is the only two-time winner of “The Ultimate Fighter” reality series.
Andrea Lee vs. Montana De La Rosa

Andrea Lee
Andrea Lee (13-9 MMA, 5-7 UFC) competes in her 13th UFC women’s flyweight bout, tied with Gillian Robertson for the second-most appearances in divisional history behind Katlyn Cerminara (14).
Lee’s four-fight losing skid is tied for the longest of her career. She hasn’t earned a victory since November 2021.
Lee has landed 21 takedowns in UFC women’s flyweight competition are tied for second-most in divisional history behind Valentina Shevchenko (39).
Lee is one of 11 fighters in UFC history to earn a submission victory by triangle-armbar. She accomplished the feat at UFC 262.
Lee’s two fight-night bonuses for UFC women’s flyweight bouts are tied for second-most in divisional history behind Molly McCann (three).
Montana De La Rosa’s (12-9-1 MA, 5-5-1 UFC) three-fight losing skid is the longest of her career. She hasn’t earned a victory since June 2021.
De La Rosa’s four stoppage victories in UFC women’s flyweight competition are third-most in history behind Robertson (seven) and Valentina Shevchenko (five).
De La Rosa’s three submission victories in UFC women’s flyweight competition are tied for the second-most in divisional history behind Robertson (six).
For more on the card, visit MMA Junkie’s event hub for UFC on ESPN 57.
UFC research analyst and live statistics producer Michael Carroll contributed to this story. Follow him on Twitter @MJCflipdascript.
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