One of the biggest events in Bellator history takes place Saturday with Bellator 206, which goes down at SAP Center in San Jose, Calif., and streams on DAZN following prelims on MMAjunkie.

A champion-vs.-champion showdown is slated for the main event as reigning middleweight title holder Gegard Mousasi (44-6-2 MMA, 2-0 BMMA) puts his belt on the line against current welterweight champ Rory MacDonald (20-4 MMA, 2-0 BMMA), who attempts to become a two-division champ.

Beyond the headliner, MMA legends Quinton Jackson (37-13 MMA, 4-2 BMMA) and Wanderlei Silva (35-13-1 MMA, 0-1 BMMA) will run it back for a fourth time, the welterweight grand prix kicks off, one of MMA’s top prospects returns, and much more.

For more on the numbers behind Bellator 206, check below for 35 pre-event facts.

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Main event

Gallery Photos: Best of Gegard Mousasi view 29 images

Mousasi is one of five middleweight champions in Bellator history.

Mousasi is the only fighter in MMA history to claim titles under the Bellator and Strikeforce banners.

Mousasi’s seven-fight winning streak is his longest since December 2009.

Mousasi is 10-1 in his past 11 fights. His only defeat in that stretch came against Uriah Hall at UFC Fight Night 75.

Mousasi has earned 36 of his 44 career victories by stoppage. He’s earned 32 of those wins in Round 1.

Gallery Robbie Lawler def. Rory MacDonald at UFC 189: Best photos view 17 images

MacDonald competes twice in a calendar year for the first time since 2014.

MacDonald will attempt to become the first simultaneous two-division champion in Bellator history. He currently holds the welterweight belt.

MacDonald moves up to the middleweight division for the first time in his career.

MacDonald owns a victory over current UFC welterweight champion Tyron Woodley.

MacDonald defended 88.9 percent of all opponent takedown attempts in UFC welterweight competition, the third highest rate in divisional history behind Woodley (97.6 percent) and Robert Whittaker (90.5 percent).

Co-main event

Jackson competes in his seventh career heavyweight bout. He’s 3-3 when competing in the weight class.

Jackson earned his past three victories by decision, the longest streak of wins in his career without a stoppage.

Jackson has suffered his past four losses by decision. He hasn’t been stopped since September 2011.

Silva competes in just his third bout since June 2012. He hasn’t won since March 2013.

Silva returns to the heavyweight division for the first time since September 2006.

Silva has alternated wins and losses over his past seven fights. He lost his most recent bout to Chael Sonnen at Bellator NYC.

Silva meets Jackson for the fourth time in his career. He won the first two by knockout and lost the third by knockout.

Silva’s 40 appearances in UFC/WEC/PRIDE/Strikeforce competition are tied with Dan Henderson for most in combined organizational history.

Silva’s 27 victories in UFC/WEC/PRIDE/Strikeforce competition are the most in combined organizational history.

Silva’s 20 stoppage victories in UFC/WEC/PRIDE/Strikeforce competition are tied for second most in combined organizational history behind Mirko Filipovic (21).

Remaining main card

Douglas Lima (29-7 MMA, 11-3 BMMA) competes in his 14th Bellator welterweight bout, the second most appearances in divisional history Andrey Koreshkov (15).

Lima’s 10 victories in Bellator welterweight competition are second most in divisional history behind Koreshkov (12).

Lima’s seven stoppage victories in Bellator welterweight competition are tied with Koreshkov and Michael Page for most in divisional history.

Lima’s eight knockout victories in Bellator competition are second most in company history behind Patricky Freire (nine).

Lima’s seven knockout victories in Bellator welterweight competition are tied with Koreshkov for most in divisional history.

Lima has suffered five of his seven career losses by decision. That includes all three of his Bellator defeats.

Andrey Koreshkov (21-2 MMA, 12-2 BMMA) competes in his 15th Bellator welterweight bout, the most appearances in divisional history.

Koreshkov’s 12 victories in Bellator welterweight competition are most in divisional history.

Koreshkov’s seven stoppage victories in Bellator welterweight competition are tied with Lima and Page for most in divisional history.

Koreshkov’s seven knockout victories in Bellator welterweight competition are tied with Lima for most in divisional history.

Gallery Photos: Best of Aaron Pico view 18 images

Aaron Pico (3-1 MMA, 3-1 BMMA), 22, is the youngest of the 10 fighters scheduled to compete on the main card.

Pico is 3-0 since he dropped to the featherweight division in September 2017.

Pico has earned all of his career victories by knockout.

Leandro Higo (18-4 MMA, 1-2 BMMA) moves up to the Bellator featherweight division after losing to bantamweight champion Darrion Caldwell at Bellator 195 in March.

Keri Melendez (2-0 MMA, 2-0 BMMA) has earned both of her career victories by stoppage.

For more on Bellator 206, check out the MMA Rumors section of the site.