Pacquiao vs. Marquez weigh-in

Manny Pacquiao, a world champion in a record eight weight divisions, shows off his shoes as he prepares to weigh in Friday at the MGM Grand Garden Arena.   (Jewel Samad / AFP / Getty Images)

Manny Pacquiao flexes his muscles after weighing in at 143 pounds on Friday at the MGM Grand Garden Arena in Las Vegas. Pacquiao will fight Juan Manuel Marquez for the third time on Saturday, with the winner taking the WBO welterweight title.   (Jewel Samad / AFP / Getty Images)

Juan Manuel Marquez steps onto the scale and weighs in at 142 pounds Friday in Las Vegas, where he will fight Manny Pacquiao on Saturday night for the WBO welterweight title.   (Jewel Samad / AFP / Getty Images)

Juan Manuel Marquez acknowledges the crowd after weighing in Friday at the MGM Grand Garden Arena.  (Jewel Samad / AFP / Getty Images)

Boxers Tim Bradley, left, and Joel Casamayor go face to face during the weigh-in on Friday night. The two will be featured on the Manny Pacquiao-Juan Manuel Marquez undercard.  (Ethan Miller / Getty Images)