Two former Ultimate Fighting Championship (UFC) Middleweight champions -- Murilo Bustamante and Dave Menne -- collided last night (March 31, 2012) in the Amazon Forest Combat (AFC) 2 from the Amadeu Teixeira Gymnasium in Manaus, Amazonas, Brazil.

It was a rematch more than a decade in the making, with Bustamante stopping Menne in their first encounter at UFC 35: "Throwdown" in Jan. 2002 via technical knockout. History (kind of) repeated itself in their second tilt, with the Brazilian getting the victory again; however, needing the nod from the ringside judges to take home a unanimous decision.

In the co-main event of the evening, former Ultimate Fighting Championship (UFC) number one 185-pound title contender, Thales Leites, took on Matt Horwich, who was in the midst of a three-fight losing skid. Leites extended it to four with a second round submission, exacting revenge after suffering a surprise submission loss to "Suave" back in 2010.

That's now six wins for Leites in his last seven appearances, making a case to perhaps return to the Octagon sooner rather than later.

AFC 2 featured several other notable mixed martial arts (MMA) veterans, including Patrick Cote, Ronys Torres and Pete Spratt, among others. Check out complete AFC 2 results after the jump:

• Murilo Bustamante defeated Dave Menne via unanimous decision
• Thales Leites defeated Matt Horwich vis submission (arm-triangle choke) in round two
• Patrick Cote defeated Gustavo Machado via knockout in round one
• Pete Spratt defeated Daniel Acacio via unanimous decision
• Ronys Torres defeated Ferrid Kheder via technical knockout (punches) in round one
• Dileno Lopes defeated Javier Ocampo via submission
• Emiliano Sordi defeated Fabiano Capoani via technical knockout (punches)
• Rivaldo Junior defeated Marcelo Rojo via unanimous decision
• Luiz Fernando defeated Pablo Javier Llampa via technical knockout (punches)

Spratt connected with an incredible spinning backfist at the buzzer, which knocked out Acacio cold. To watch the highlight-reel near finish click here.