Manny Pacquiao, boxing's biggest international superstar, is defending his WBO welterweight championship against Timothy Bradley tonight at the MGM Grand Garden Arena in Las Vegas (HBO PPV).

Bradley, the WBO junior welterweight champion from Palm Springs, Calif., is moving up to 147 pounds for a chance at one of the sport's biggest fish and a career-high $5 million purse. Pacquiao will earn a guaranteed $26 million, a figure that could increase depending on the pay-per-view sales.

Follow blow-by-blow analysis of tonight's title bout with SI.com's Chris Mannix and Bryan Armen Graham, with coverage expected to begin at 10:45 p.m. ET.

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