RIO DE JANEIRO -- Anderson Silva stopped Stephan Bonnar with a knee to the body with 20 seconds left in the first round Saturday night, winning his 17th consecutive fight in front of his home fans at UFC 153.

Silva (31-4) showed off his usual dominance while stopping Bonnar (17-8) for the first time in the veteran's career. Silva dared Bonnar to take a shot at him in the early minutes before hurting him with a knee and finishing him with punches on the ground.

Antonio Rodrigo Nogueira also defeated Dave Herman by armbar submission late in the second round at Rio's HSBC Arena, and UFC newcomer Glover Teixeira stopped Fabio Maldonado after two rounds for his 17th straight victory.

Silva has been the UFC's middleweight champion since October 2006, and he defended his title July 7 with a dominant victory in his rematch with Chael Sonnen. But when featherweight champion Jose Aldo and several other fighters dropped off the UFC 153 card because of injuries and schedule changes, Silva volunteered to headline the Rio show on just a few weeks' notice, even moving up 20 pounds to light heavyweight for the third time in his career.

Bonnar was among the biggest underdogs in UFC history, but gamely tried to engage with Silva before getting finished. Bonnar hadn't fought since last November, and unofficially considered himself retired.

Silva's easy move up to 205 pounds prompted many fans to wonder if he was preparing for a shot at light heavyweight champion Jon "Bones" Jones, although Silva has discounted the notion.

While the top three Brazilian fighters on the card all dominated, others didn't do as well. Jon Fitch beat Erick Silva by unanimous decision, and Phil Davis beat Wagner Prado by second-round submission with an anaconda choke.

Nogueira (34-7-1) was impressive in his first fight since his arm was broken by Frank Mir at UFC 140. He dominated Herman (21-5) with Brazilian jiu-jitsu – a discipline that Herman claimed "didn't work" against him before the fight.

Teixeira (19-2) battered Maldonado with punches from a full mount for most of their two rounds, but Maldonado survived to the horn both times until the cageside physician called it off before the third.

After fighting for the WEC and various Brazilian promotions during his career, Teixeira joined the UFC in May with a win over Kyle Kingsbury. Teixeira had hoped to fight Rampage Jackson in Rio, but the former light heavyweight champion dropped off the UFC 153 card with an injury.

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  • Anderson Silva, Stephan Bonnar

    Anderson Silva, from Brazil, back, fights Stephan Bonnar, from the U.S., during their light heavyweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, early Sunday, Oct. 14, 2012. Silva defeated Bonnar. (AP Photo/Felipe Dana)

  • Reza Madadi

    The hand of Cristiano Marcello, from Brazil, right, punches Reza Madadi, from Sweden, during their lightweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Marcello defeated Madadi. (AP Photo/Felipe Dana)

  • Reza Madadi

    Reza Madadi, right, from Sweden, fights Cristiano Marcello, from Brazil, during their lightweight mixed martial arts bout at UFC 153 in Rio de Janeiro, Saturday, Oct. 13, 2012. Marcello defeated Madadi. (AP Photo/Felipe Dana)

  • Cristiano Marcello, Reza Madadi

    Cristiano Marcello, from Brazil, left, fights Reza Madadi, from Sweden, during their lightweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Marcello defeated Madadi. (AP Photo/Felipe Dana)

  • Reza Madadi

    Reza Madadi, from Sweden, left, reacts to a punch from Cristiano Marcello, of Brazil, during their lightweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Marcello defeated Madadi. (AP Photo/Felipe Dana)

  • Chris Camozzi, Luiz Cane

    Luiz Cane, from Brazil, left, fights Chris Camozzi, from the U.S, during their middleweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday Oct. 13, 2012. Camozzi defeated Cane. (AP Photo/Felipe Dana)

  • Sergio Moraes, Renee Forte

    Sergio Moraes, from Brazil, celebrates after defeating countryman Renee Forte after their welterweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. (AP Photo/Felipe Dana)

  • Diego Brandao, Joey Gambino

    Diego Brandao, from Brazil, right, exchange punches with Joey Gambino, from the U.S., during their featherweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday Oct. 13, 2012. Brandao defeated Gambino. (AP Photo/Felipe Dana)

  • Sergio Moraes, Renee Forte

    Sergio Moraes, from Brazil, top, fights countryman Renee Forte during their welterweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday Oct. 13, 2012. Moraes defeated Forte. (AP Photo/Felipe Dana)

  • Glison Tibau, Francisco Trinaldo

    Glison Tibau, from Brazil, behind, is punched by countryman Francisco Trinaldo during their lightweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Tibau defeated Trinaldo. (AP Photo/Felipe Dana)

  • Chris Camozzi, Luiz Cane

    Luiz Cane, from Brazil, left, fights Chris Camozzi, from the U.S, during their middleweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday Oct. 13, 2012. Camozzi defeated Cane. (AP Photo/Felipe Dana)

  • Rony Jason, Sam Sicilia

    Rony Jason, from Brazil, celebrates after defeating Sam Sicilia, from the U.S., after their featherweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. (AP Photo/Felipe Dana)

  • Rony Jason, Sam Sicilia

    Rony Jason, from Brazil, left, fights Sam Sicilia, from the U.S., during their featherweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Jason defeated Sicilia. (AP Photo/Felipe Dana)

  • Demian Maia, Rick Story

    Demian Maia, from Brazil, top, chokes Rick Story, from the U.S., during their welterweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Maia defeated Story. (AP Photo/Felipe Dana)

  • Phil Davis, Wagner Prado

    Phil Davis, right, from the United State, fights Wagner Prado, from Brazil, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro on Saturday, Oct. 13, 2012. Davis defeated Prado. (AP Photo/Felipe Dana)

  • Glover Teixeira, top, from Brazil, fights countryman Fabio Maldonado during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. Teixeira defeated Maldonado. (AP Photo/Felipe Dana)

  • Jon Fitch, Erick Silva

    Jon Fitch, right, of the United States, fights Erick Silva, from Brazil, during their welterweight mixed martial arts bout at the UFC153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. Fitch defeated Silva. (AP Photo/Felipe Dana)

  • Fabio Maldonado, from Brazil, reacts after being defeated by countryman Glover Teixeira, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. (AP Photo/Felipe Dana)

  • Glover Teixeira, left, from Brazil, fights countryman Fabio Maldonado, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro early Sunday, Oct. 14, 2012. Teixeira defeated Maldonado. (AP Photo/Felipe Dana)

  • Minotauro Nogueira, left, from Brazil, left, fights Dave Herman, from the United States, during their heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. Nogueira defeated Herman. (AP Photo/Felipe Dana)

  • Minotauro Nogueira, left, from Brazil, fights Dave Herman, from the United States, during their heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. Nogueira defeated Herman. (AP Photo/Felipe Dana)

  • Minotauro Nogueira, left, from Brazil, fights Dave Herman, from the United States, during their heavyweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153, Sunday, Oct. 14, 2012, in Rio de Janeiro, Brazil. Nogueira defeated Herman. (AP Photo/Felipe Dana)

  • Anderson Silva, Stephan Bonnar

    Anderson Silva, right, from Brazil, fights Stephan Bonnar, from the United States, during their light heavyweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, early Sunday, Oct. 14, 2012. Silva defeated Bonnar. (AP Photo/Felipe Dana)

  • Anderson Silva, Stephan Bonnar

    Anderson Silva, from Brazil, celebrates after defeating Stephan Bonnar, from the United States, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. (AP Photo/Felipe Dana)

  • Anderson Silva, Stephan Bonnar

    Anderson Silva, from Brazil, right, fights Stephan Bonnar, from the United States, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. Silva defeated Bonnar. (AP Photo/Felipe Dana)

  • Anderson Silva, Stephan Bonnar

    Anderson Silva, from Brazil, celebrates after defeating Stephan Bonnar, from the United States, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. (AP Photo/Felipe Dana)

  • Anderson Silva, Stephan Bonnar

    Anderson Silva, from Brazil, celebrates after defeating Stephan Bonnar, from the United States, during their light heavyweight mixed martial arts bout at UFC153 in Rio de Janeiro, early Sunday, Oct. 14, 2012. (AP Photo/Felipe Dana)

  • Phil Davis, Wagner Prado

    Phil Davis, from the United States, reacts after defeating Wagner Prado, from Brazil, during their light heavyweight mixed martial arts bout at UFC 153 in Rio de Janeiro, Saturday, Oct. 13, 2012. (AP Photo/Felipe Dana)

  • Demian Maia, Rick Story

    Demian Maia, from Brazil, top, chokes Rick Story, from the U.S., during their welterweight mixed martial arts bout at the Ultimate Fighting Championship (UFC) 153 in Rio de Janeiro, Brazil, Saturday, Oct. 13, 2012. Maia defeated Story. (AP Photo/Felipe Dana)