The main event of UFC 142 saw Jose Aldo knockout Chad Mendes to retain the Featherweight Championship in his hometown of Rio de Janeiro, Brazil. The co-main event saw Vitor Belfort beat Anthony Johnson. All fights on this card had at least 1 Brazilian fighter involved. The Carlo Prater Vs Erick Silva bout ended in controversy. Referee Mario Yamasaki disqualified Silva because of several shots that he thought hit the back of Prater's head. From watching past UFC bouts, usually the referee stops it right there to deduct a point from the fighter after he warns him, not automatically end the bout right there.
Main Card
Jose Aldo Defeated Chad Mendes Via KO at 4:59 of Round 1
Vitor Belfort Defeated Anthony Johnson Via Submission at 4:49 of Round 1
Rousimar Palhares Defeated Mike Massenzio Via Submission at 1:03 of Round 1
Carlo Prater Defeated Erick Silva Via Disqualification at 0:29 of Round 1
Edson Barboza Defeated Terry Etim Via KO at 2:02 of Round 3
Preliminary Card
Thiago Tavares Defeated Sam Stout Via Unanimous Decision
Gabriel Gonzaga Defeated Ednaldo Oliveira Via Submission at 3:22 of Round 1
Yuri Alcantara Defeated Michihiro Omigawa Via Unanimous Decision
Mike Pyle Defeated Ricardo Funch Via TKOat 1:22 of Round 1
Felipe Arantes Defeated Antonio Carvalho Via Unanimous Decision
Fight of the Night: Edson Barboza Vs Terry Etim
Knockout of the Night: Edson Barboza
Submission of the Night: Rousimar Palhares
Main Card
Jose Aldo Defeated Chad Mendes Via KO at 4:59 of Round 1
Vitor Belfort Defeated Anthony Johnson Via Submission at 4:49 of Round 1
Rousimar Palhares Defeated Mike Massenzio Via Submission at 1:03 of Round 1
Carlo Prater Defeated Erick Silva Via Disqualification at 0:29 of Round 1
Edson Barboza Defeated Terry Etim Via KO at 2:02 of Round 3
Preliminary Card
Thiago Tavares Defeated Sam Stout Via Unanimous Decision
Gabriel Gonzaga Defeated Ednaldo Oliveira Via Submission at 3:22 of Round 1
Yuri Alcantara Defeated Michihiro Omigawa Via Unanimous Decision
Mike Pyle Defeated Ricardo Funch Via TKOat 1:22 of Round 1
Felipe Arantes Defeated Antonio Carvalho Via Unanimous Decision
Fight of the Night: Edson Barboza Vs Terry Etim
Knockout of the Night: Edson Barboza
Submission of the Night: Rousimar Palhares