The UFC makes its second stop of the year in Brazil on Saturday with UFC 237 at Jeunesse Arena in Rio de Janeiro, with a main card that airs on pay-per-view following prelims on ESPN and ESPN+.

A strawweight championship fight headlines the card. Rose Namajunas (8-3 MMA, 6-2 UFC) will return to action for the first time since April 2018 when she meets challenger Jessica Andrade (19-6 MMA, 10-4 UFC), who tries for UFC gold again after coming up short in her first opportunity two years ago.

In addition to the main event, the card also features three former UFC champs and two more former challengers. For more on the numbers behind the event, check below for 80 pre-event facts about UFC 237.

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Main event

Namajunas, 26, is the youngest of the UFC’s current active champions.

Namajunas is one of three fighters to hold the UFC strawweight title.

Namajunas returns to competition for the first time since April 7, 2018. The 399-day layoff is the longest of her more-than-six-year career.

Namajunas’ three-fight UFC winning streak in strawweight competition is tied for the third longest active streak in the division behind Tatiana Suarez (four) and Nina Ansaroff (four).

Namajunas’ six victories in UFC strawweight competition are tied for second most in divisional history behind Joanna Jedrzejczyk (nine).

Namajunas’ four stoppage victories in UFC strawweight competition are most in divisional history.

Namajunas’ two knockdowns landed in UFC strawweight competition are tied with Angela Hill for most in divisional history.

Namajunas’ three submission victories in UFC strawweight competition are most in divisional history.

Namajunas’ submission of Paige VanZant at the 2:25 mark of Round 5 at UFC Fight Night 80 stands as the latest stoppage in UFC strawweight history and the third latest stoppage overall in a women’s UFC bout.

Namajunas’ three fight-night bonuses in UFC strawweight competition are tied for second most in divisional history behind Andrade (four).

Andrade makes her 15th UFC appearance, the most by any female in company history.

Andrade is 6-1 since she dropped to the UFC strawweight division in June 2016.

Andrade’s 10 UFC victories are tied with Amanda Nunes for most by any female in company history.

Andrade’s three-fight UFC winning streak in strawweight competition is tied for the third longest active streak in the division behind Suarez (four) and Ansaroff (four).

Andrade’s six victories in UFC strawweight competition are tied for second most in divisional history behind Jedrzejczyk (nine).

Andrade’s three stoppage victories in UFC strawweight competition are for second most in divisional history behind Namajunas (four).

Andrade’s two knockout victories in UFC strawweight competition are tied with Jedrzejczyk and Paige VanZant for most in divisional history.

Andrade landed 242 total strikes against Claudia Gadelha at UFC Fight Night 117, the most in a UFC strawweight fight.

Andrade out-landed Gadelha by 194 total strikes at UFC Fight Night 117, the largest differential in a UFC strawweight fight.

Andrade lands 7.36 significant strikes per minute in UFC strawweight competition, the best rate in divisional history.

Andrade’s 10 takedowns landed against Tecia Torres at UFC on FOX 29 stand as the single-fight record for a women’s UFC bout.

Andrade’s four fight-night bonuses for UFC strawweight bouts are most in divisional history

Co-main event

Jared Cannonier (11-4 MMA, 4-4 UFC) was successful in his middleweight debut at UFC 230 in November.

Cannonier has earned nine of his 11 career victories by stoppage. That includes three of his four UFC wins.

Anderson Silva (34-9 MMA, 17-5 UFC), 44, is the oldest of the 26 fighters scheduled to compete at the event.

Silva becomes the fifth fighter to make 20 UFC middleweight appearances.

Silva is 1-4 (with one no-contest) in his past six UFC appearances dating back to July 2013.

Silva holds the UFC record for most consecutive victories with 16.

Silva’s 14 victories in UFC middleweight competition are second most in divisional history behind Michael Bisping (16).

Silva’s 14 stoppage victories in UFC competition are tied with Vitor Belfort for second most in company history behind Donald Cerrone (16).

Silva’s 11 knockout victories in UFC competition are tied with Anthony Johnson for second most in history behind Belfort (12).

Silva’s eight knockout victories in UFC middleweight competition are tied with Thiago “Marreta” Santos for most in divisional history.

Silva’s 18 knockdowns landed in UFC competition are tied with Jeremy Stephens for second most in company history behind Cerrone (20).

Silva’s 13 knockdowns landed in UFC middleweight competition are most in divisional history.

Silva’s seven knockdowns landed from the clinch position in UFC competition are the most in history.

Silva is one of five fighters in UFC history with three knockdowns landed against a single opponent in two separate bouts. Cerrone, Conor McGregor, Israel Adesanya and John Lineker also accomplished the feat.

Silva lands 60.2 percent of his significant strike attempts in UFC middleweight competition, the highest rate in divisional history.

Silva’s 10 consecutive UFC title defenses during his reign stand as the second most in history behind Demetrious Johnson (11).

Silva’s 13 appearances in UFC championship fights are tied for fourth most in history behind Randy Couture (15), Georges St-Pierre (15) and Johnson (14).

Silva’s 11 victories in UFC championship fights are tied for fourth most in history behind St-Pierre (13), Johnson (12) and Jon Jones (12).

Silva’s 14 fight-night bonuses for UFC bouts are tied with Charles Oliveira for third most in history behind Cerrone (17), Nate Diaz (15), Joe Lauzon (15).

Remaining main card

Jose Aldo (28-4 MMA, 10-3 UFC) is the only two-time UFC featherweight titleholder in history and one of seven overall in company history to have two reigns in a single weight class.

Aldo competes in his 22nd UFC/WEC featherweight bout, the second most appearances in combined divisional history behind Cub Swanson (25).

Aldo’s 18 UFC/WEC featherweight victories are the most in combined divisional history.

Aldo’s 15-fight UFC/WEC winning streak before losing to McGregor at UFC 194 is the second longest in the combined history of the two organizations behind A. Silva (16).

Aldo’s 11 stoppage victories in UFC/WEC featherweight competition are the most in combined divisional history.

Aldo’s 11 knockout victories in UFC/WEC featherweight competition are most in combined divisional history.

Aldo defends 90.6 percent of opponent takedown attempts in UFC featherweight competition, the second highest rate in combined divisional history behind Shane Burgos (94.1 percent).

Aldo’s nine fight-night bonuses for UFC/WEC featherweight bouts are second most in combined divisional history behind Swanson (11).

Alexander Volkanovski (19-1 MMA, 6-0 UFC) enters the event on a 16-fight winning streak. He hasn’t suffered a defeat since May 2013.

Volkanovski’s four-fight UFC winning streak in featherweight competition is tied for the fourth longest active streak in the division behind Max Holloway (12), Zabit Magomedsharipov (five) and Arnold Allen (five).

Volkanovski has outlanded his six UFC opponents by a 364-128 margin in total strikes.

Volkanovski lands 60.3 percent of his significant strike attempts in UFC competition, the fifth best rate in company history.

Volkanovski has landed two or more takedowns against five of his six UFC opponents.

Thiago Alves (23-13 MMA, 15-10 UFC) competes in his 25th UFC welterweight bout, the most appearances in divisional history.

Alves’ 15 victories in UFC welterweight competition are tied for third most in divisional history behind St-Pierre (19) and Matt Hughes (16).

Alves’ nine stoppage victories in UFC welterweight competition are third most in divisional history behind Hughes (12) and Matt Brown (12).

Alves’ eight knockout victories in UFC welterweight competition are second most in divisional history behind Brown (10).

Alves’ 13 knockdowns landed in UFC welterweight competition are the most in divisional history.

Alves’ four knockout victories stemming from knee strikes in UFC competition are most in company history.

Alves has landed 354 leg kicks in UFC competition, tied with Joanna Jedrzejczyk for the second most in company history behind Cerrone (367).

Alves’ 52 leg kicks landed against Seth Baczynski at UFC on FOX 11 are the second most landed in a three-round UFC fight. Benson Henderson, who landed 53 kicks against Cerrone at UFC Fight Night 59, holds the single-fight record.

Francisco Trinaldo (23-6 MMA, 13-5 UFC), 40, is the oldest active fighter in the UFC lightweight division.

Trinaldo is the only fighter in UFC history to earn two arm-triangle submission victories from half-guard.

Preliminary card

Antonio Rogerio Nogueira (23-8 MMA, 6-5 UFC), 42, is the oldest active fighter in the UFC light-heavyweight division.

Kurt Holobaugh (17-6 MMA, 0-4 UFC) is 0-2 since he returned to the UFC for a second stint in July.

Irene Aldana’s (9-4 MMA, 2-2 UFC) two-fight UFC winning streak in women’s bantamweight competition is tied for the fourth longest active streak in the division behind Amanda Nunes (seven), Ketlen Vieira (four) and Germaine de Randamie (three).

Bethe Correia (10-3-1 MMA, 4-3-1 UFC) returns to competition for the first time since June 17, 2017. The 693-day layoff is the longest of her nearly seven-year career.

Correia is 1-3-1 in her past five UFC appearances dating back to August 2015.

Correia has earned eight of her 10 career victories by decision. That includes three of her four UFC wins.

Correia and Marion Reneau fought to the first draw in women’s UFC history at UFC Fight Night 106.

B.J. Penn (16-13-2 MMA, 12-12-2 UFC) enters the event on a six-fight losing skid. He hasn’t earned a victory since November 2010.

Penn’s six-fight UFC losing skid is tied with three other fighters for the longest in company history.

Penn’s seven-fight UFC winless skid is the longest in UFC history.

Penn is 1-8-1 in his past 10 UFC appearances dating back to April 2010.

Penn is one of six fighters in UFC history to win championships in two weight classes. Amanda Nunes, Daniel Cormier, Georges St-Pierre, Conor McGregor, Randy Couture also accomplished the feat.

Penn’s nine stoppage victories in UFC lightweight competition are tied for fourth most in divisional history behind Joe Lauzon (12), Jim Miller (11) and Donald Cerrone (10).

Penn’s six knockout victories in UFC lightweight competition are tied for third most in divisional history behind Edson Barboza (seven) and Melvin Guillard (seven).

Penn has been outlanded 753 to 315 in significant strikes during his past 10 fights.

Penn lands 66.7 percent of his takedown attempts in UFC lightweight competition, the second best rate in divisional history behind Islam Makhachev (70.8 percent).

Clay Guida (34-18 MMA, 14-12 UFC) is 2-1 since he returned to the UFC lightweight division in June 2017.

Guida’s 50 takedowns landed in UFC lightweight competition are tied for second most in divisional history behind Gleison Tibau (84).

Guida has attempted 173 takedowns during his UFC career, the fourth most in company history behind Demian Maia (238), Frankie Edgar (198) and Nik Lentz (192).

Warlley Alves’ (12-3 MMA, 6-3 UFC) three guillotine choke submission victories in UFC competition are tied for third most in company history.

Carlos Quiroz (10-3-2 MMA, 0-0 UFC), 22, is the youngest of the 26 fighters scheduled to compete at the event.

For more on UFC 237, check out the UFC Rumors section of the site.

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