MONTREAL -- Canadian Georges St. Pierre unified the welterweight title in his return to the octagon, unanimously outpointing Carlos Condit in a bloody fight Saturday night at UFC 154.

The judges scored it almost a shutout for St. Pierre at 49-46, 50-45, 50-45.

The 31-year-old St. Pierre consolidated his lead with takedowns as the fight wore on, showing his wrestling skills and ability to resist Condit's submission attempts on the ground.

The two battered fighters shook hands and embraced when the fight ended.

St. Pierre (23-2) fought for the first time since April 2011 following reconstructive knee surgery after a training injury. Condit won the interim title during the Canadian's absence, beating Nick Diaz in February.

"People talk about ring rust. I definitely know what it is now," St. Pierre said. "Credit to Carlos, he definitely gave me my toughest fight."

St. Pierre said his knee was fine throughout the fight.

The victory likely means a super-fight showdown with middleweight champion Anderson Silva. The 37-year-old Brazilian met the media before the card started, declaring his interest in meeting St. Pierre somewhere between their two weight classes.

"I need to take some vacation and think about it," St. Pierre said.

Condit dropped to 28-6.

"His top game was very, very good," Condit said. "He was able to hold me down better than I expected. I feel like I did pretty well ... but I need to go back to the drawing board."

Condit knocked down St. Pierre down with a head kick early in the third and swarmed him.

"I thought I had him there," Condit said.

St. Pierre has won 10 straight fights since April 2007 when he was upset by Matt Serra.

In the co-main event, Johny Hendricks knocked out Martin Kampmann in 46 seconds in a battle of welterweight contenders. Hendricks (14-01) threw a right, then nailed Kampmann (20-6) with a left, sending him flying backward. Hendricks hit the Dane one more time on the ground before the referee stepped in.

Hendricks mimed holding the championship belt around his waist as he celebrated this fifth straight win.

"Please, please give me a shot at the belt," Hendricks said.

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  • Carlos Condit Georges St-Pierre

    Carlos Condit, bottom, battles with Georges St-Pierre during their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Carlos Condit Georges St-Pierre

    Carlos Condit, right, trades punches with Georges St-Pierre during their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Carlos Condit Georges St-Pierre

    Georges St-Pierre performs a cartwheel as he enters the ring for his fight with Carlos Condit on Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Carlos Condit Georges St-Pierre

    Georges St-Pierre holds the belt after defeating Carlos Condit in their UFC welterweight title fight Sunday, November 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Carlos Condit Georges St-Pierre

    Carlos Condit, right, trades punches with Georges St-Pierre during their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Carlos Condit Georges St-Pierre

    Carlos Condit, bottom, battles with Georges St-Pierre during their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Johny Hendricks, Martin Kampmann,

    Carlos Condit, bottom, battles with Georges St-Pierre during their UFC welterweight title fight Sunday, November 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Johny Hendricks, Martin Kampmann,

    Georges St-Pierre, left, celebrates after defeating Carlos Condit in their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Johny Hendricks, Martin Kampmann,

    Georges St-Pierre celebrates with his parents after defeating Carlos Condit in their UFC welterweight title fight Sunday, Nov. 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Johny Hendricks, Martin Kampmann,

    Carlos Condit, bottom, battles with Georges St-Pierre during their UFC welterweight title fight Sunday, November 18, 2012 in Montreal. A relentless St-Pierre celebrated his comeback by winning a five-round decision over Condit to unify the welterweight title in a bloody battle at UFC 154. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Patrick Cote, Alessio Sakara

    Patrick Cote, left, from Canada, is knocked down by Alessio Sakara during their UFC 154 middleweight bout on Saturday, Nov. 17, 2012, in Montreal. Cote won the bout after Sakara was disqualified. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Sam Stout, John Makdessi

    Sam Stout, right, from Canada, takes hit from John Makdessi, from Canada, during their UFC 154 lightweight bout Saturday, Nov. 17, 2012, in Montreal. Makdessi won the unanimous decision. (AP Photo/The Canadian Press, Ryan Remiorz)

  • Rodrigo Damm, Antonio Carvalho

    Rodrigo Damm, right, from Brazil, trades punches with Antonio Carvalho, from Canada, during their UFC 154 featherweight bout Saturday, Nov. 17, 2012, in Montreal. Damm won the fight with a split decision. (AP Photo/The Canadian Press, Ryan Remiorz)