UFC 155: Junior dos Santos vs. Cain Velasquez
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Cain Velasquez punches Junior dos Santos during their fight at UFC 155. (Courtesy: Tracy Lee for Y! Sports)
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Cain Velasquez lands a punch on Junior dos Santos' face during their fight at UFC 155. (Courtesy: Tracy Lee for Y! Sports)
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LAS VEGAS, NV - DECEMBER 29: Cain Velasquez versus Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Cain Velasquez versus Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Cain Velasquez versus Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Cain Velasquez versus Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Cain Velasquez versus Junior dos Santos during their heavyweight championship fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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Cain Velasquez celebrates after beating Junior dos Santos at UFC 155. (Courtesy: Tracy Lee for Y! Sports)
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LAS VEGAS, NV - DECEMBER 29: Erik Perez walks to the Octagon to face Byron Bloodworth before their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Erik Perez versus Byron Bloodworth during their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Erik Perez reacts to his victory over Byron Bloodworth after their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
- 12/23
LAS VEGAS, NV - DECEMBER 29: (R-L) Melvin Guillard versus Jamie Varner during their lightweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (R-L) Melvin Guillard versus Jamie Varner during their lightweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Jamie Varner (right) reacts to being declared the winner over Melvin Guillard (left) after their lightweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Donald Miralle/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (L-R) Myles Jury versus Michael Johnson during their lightweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Myles Jury reacts to being declared the winner over Michael Johnson after their lightweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (L-R) Eddie Wineland versus Brad Pickett during their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (L-R) Eddie Wineland versus Brad Pickett during their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Eddie Wineland reacts to being declared the victor over Brad Pickett after their bantamweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (L-R) Derek Brunson versus Chris Leben during their middleweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: (L-R) Derek Brunson versus Chris Leben during their middleweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Alan Belcher versus Yushin Okami during their middleweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
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LAS VEGAS, NV - DECEMBER 29: Alan Belcher versus Yushin Okami during their middleweight fight at UFC 155 on December 29, 2012 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Josh Hedges/Zuffa LLC/Zuffa LLC via Getty Images)
Highlights from UFC 155, featuring the heavyweight title fight between current champ Junior dos Santos and former champ Cain Velasquez, on Saturday, Dec. 29, 2012 at the MGM Grand Garden Arena in Las Vegas.