Photos: Manny Pacquiao vs. Timothy Bradley

Timothy Bradley walks to the MGM Grand Garden Arena ring before facing Manny Pacquiao in a WBO welterweight title fight on Saturday in Las Vegas.

Manny Pacquiao, left, and Timothy Bradley trade punches in the middle of the MGM Grand Garden Arena ring during their WBO welterweight title fight on April 9.  (John Locher / Associated Press)

Manny Pacquiao lands a left as he trades punches with Timothy Bradley Jr. during their title fight in Las Vegas.

Manny Pacquiao goes on the attack against Timothy Bradley during their WBO welterweight title bout at the MGM Grand on Apr. 9.

Timothy Bradley Jr. tries to land a left jab against Manny Pacquiao during their WBO welterweight championship fight.

Manny Pacquiao gets instructions in between rounds from trainer Freddie Roach during a WBO welterweight title fight in Las Vegas.

Timothy Bradley, right, lands an overhand right against Manny Pacquiao during their WBO welterweight title fight Saturday.

Manny Pacquiao tries to land a right against Timothy Bradley Jr. during their WBO welterweight title bout.

Timothy Bradley Jr. tries to get back up after getting knocked to the canvas by Manny Pacquiao during their fight Saturday. Bradley went down in the seventh and ninth rounds.

Manny Pacquiao throws a left during a WBO welterweight championship fight against Timothy Bradley Jr. on Saturday at MGM Grand Garden Arena in Las Vegas.

Manny Pacquiao is seeking his fourth WBO welterweight title on Saturday.