The UFC returns to Brazil for the first time in 2015 on Sunday with UFC Fight Night 61 at Gigantinho Gymnasium in Porto Alegre, Rio Grande do Sul.

The event originally featured Rashad Evans vs. Glover Teixeira in the headliner, but after that fight was scrapped, a heavyweight matchup between Antonio Silva (18-6-1 MMA, 2-3-1 UFC) and Frank Mir (16-9 MMA, 14-9 UFC) moved from UFC 184 to UFC Fight Night 61 as a substitute main event.

Both men are no strangers to main events. Sunday’s bout marks their combined ninth headliner under the UFC banner. For the numbers behind Silva, Mir and the remaining 20 competitors on the card, check out 50 pre-fight facts about UFC Fight Night 61.

Main event

Silva competes in his fifth UFC main event. He’s 1-2-1 in his previous four headliners.

Silva enters the event with just two victories in his past seven bouts.

Silva and Mark Hunt combined for 200 significant strikes at UFC Fight Night 33, a single-fight UFC heavyweight record.

Silva knocked out Alistair Overeem at UFC 156 despite a -30 significant-strike differential. His victory represents the third greatest statistical comeback finish in UFC heavyweight history.

Silva has suffered five of his six career losses by knockout. All five of those stoppages have come in the first round.

Mir is the longest tenured active fighter on the UFC roster. He made his UFC debut on Nov. 2, 2001 – a total of 4,860 days prior to his bout against Silva.

Mir enters the event on a career-worst four-fight losing skid. Junior Dos Santos, Daniel Cormier, Josh Barnett and Alistair Overeem defeated him in that stretch.

Mir is the first fighter in UFC history to headline an event after four consecutive losses.

Mir fights in the UFC for the 24th time, the most of any heavyweight in the organization’s history. His 24th UFC appearance will move him into a tie for third place all-time behind Tito Ortiz (27) and Matt Hughes (25).

Mir has earned 14 UFC heavyweight victories, the most in divisional history.

Mir’s eight submission victories in UFC competition are tied with Nate Diaz and Kenny Florian for the most in modern UFC history.

Mir has earned all eight of his UFC submissions in the first round, the most in history. Hughes is second in the category with just five submissions in the opening frame.

Mir is one of two fighters in UFC history to earn more than one submission victory in less than one minute. Rousimar Palhares is the other. Mir has accomplished the feat three times and is owner of the two quickest submissions in heavyweight history.

Mir is one of just six fighters in modern UFC history to earn three sub-minute knockout or submission finishes.

Mir is the only fighter UFC history to earn three technical submission victories inside the octagon.

Mir has attempted 21 submissions in UFC heavyweight competition, the most in divisional history.

Mir’s three knockdowns of Antonio Rodrigo Nogueira at UFC 92 are tied for the most in a single UFC heavyweight fight.

Mir has suffered seven of his nine career losses by knockout.

Co-main event

Edson Barboza’s (15-2 MMA, 9-2 UFC) five knockout victories in UFC lightweight competition are tied for the third most in divisional history behind Melvin Guillard (seven) and B.J. Penn (six).

Barboza’s eight knockdowns landed in UFC lightweight competition are tied for the second most in divisional history behind Guillard (13).

Barboza has earned four knockouts stemming from kicks in UFC competition, the most in UFC history.

Barboza is the only fighter in UFC history to earn knockout finishes stemming from head, body and leg kicks.

Barboza is the only fighter in UFC history to earn two knockout victories stemming from leg kicks. He used the technique to stop Rafaello Oliveira at UFC 162 and Mike Lullo at UFC 123.

Barboza has landed 34.5 percent of his 412 significant strikes to his opponents’ legs, the largest proportion of leg strikes among active UFC lightweights.

Michael Johnson (15-8 MMA, 7-4 UFC) returns to competition for the first time since March 8, 2014. His 351-day layoff between fights is the longest of his pro career.

Johnson has landed eight knockdowns in UFC lightweight competition, tied for the second most of any fighter in divisional history behind Guillard (eight).

Johnson out-struck Joe Lauzon by a margin of 91 strikes at UFC Fight Night 26, the fourth largest disparity in a UFC lightweight bout.

Johnson has suffered seven of his nine career losses by submission.

Remaining main card

Cezar Ferreira (8-3 MMA, 4-1 UFC) has earned three of his four UFC victories by decision.

Ferreira’s 47-second submission win over Thiago Santos at UFC 163 stands as the third fastest in UFC middleweight history. Rory Singer holds the record with his 44-second finish of Ross Pointon at the TUF 3 Finale.

Rustam Khabilov (17-2 MMA, 3-1 UFC) has earned two of his three UFC victories by first-round stoppage.

Khabilov is one of seven fighters in UFC history to earn a knockout stemming from a slam takedown. He accomplished the feat against Vinc Pichel at the TUF 16 Finale.

Khabilov averages 5.83 takedowns per 15 minutes, a rate that dwarfs the UFC average of 1.75.

Iuri Alcantara (31-5 MMA, 6-2 UFC) competes in his eighth UFC bout in Brazil, the most appearances in the country by any fighter in company history.

Alcantara is 4-1 with one no-contest since he dropped to the UFC bantamweight division in January 2013.

Alcantara’s three-fight UFC winning streak is tied for the second longest active streak in the bantamweight division behind Raphael Assuncao (seven).

Alcantara’s 25-second knockout of Vaughan Lee at UFC Fight Night 41 stands as the fourth fastest knockout in UFC/WEC bantamweight history.

Alcantara has earned four of his six UFC victories by decision.

Santiago Ponzinibbio (19-2 MMA, 1-1 UFC) has earned 17 of his 19 career victories by stoppage. He has earned 13 of those finishes in the first round.

Ponzinibbio has earned his past nine victories by knockout or submission.

Sean Strickland (15-0 MMA, 2-0 UFC) returns to competition for the first time since May 31, 2014. His 267-day layoff between fights is the longest of his pro career.

Strickland drops to the UFC welterweight division for the first time despite a 15-fight winning streak at middleweight.

Preliminary card

Jessica Andrade’s (12-3 MMA, 3-1 UFC) three-fight UFC winning streak is tied for the second longest active streak in the UFC women’s bantamweight division behind champion Ronda Rousey (four).

Andrade has earned 10 of her 12 career victories by stoppage.

Andrade is one of three fighters to earn a submission victory in UFC women’s bantamweight competition.

Andrade landed 206 significant strikes against Rosi Sexton at UFC Fight Night 30, the second most in a UFC bout.

Marion Reneau (5-1 MMA, 1-0 UFC) competes in her second UFC bout in a 50-day span. She defeated Alex Dufresne at UFC 182 on Jan. 3.

Matt Dwyer (7-2 MMA, 0-1 UFC) has earned all his career wins and suffered all his career losses by knockout.

Tiago Trator (19-4-2 MMA, 1-0 UFC) enters the event on a career-high 11-fight winning streak. He has not suffered a defeat since December 2011.

T.J. Waldburger (16-9 MMA, 4-4 UFC) has earned 13 of his 16 career victories by submission.

Waldburger attempts 4.8 submission attempts per 15 minutes of fighting, the second highest rate in UFC welterweight history behind Dustin Hazelett (5.7).

Waldburger has suffered seven of his nine career losses by knockout.

Douglas de Andrade (22-1 MMA, 0-1 UFC) had his 23-fight undefeated streak snapped when he suffered a defeat in his UFC debut at UFC Fight Night 36.

De Andrade returns to competition for the first time since Feb. 15, 2014. His 372-day layoff between fights is the longest of his pro career.

For more on UFC Fight Night 61, 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.