We're less than 12 hours removed from Manny Pacquiao's knockout of David Diaz, and already the question must be asked: Who does Pacquiao fight next? Here are a few possibilities:
Nate Campbell: This would be an excellent fight, with the winner potentially unifying the lightweight title belts of all four sanctioning bodies.
Edwin Valero: Pacquiao's promoter, Bob Arum, says Pacquiao will stay at lightweight to defend the WBC title he won last night, and Valero is the one name he mentioned as a possible opponent.
Joel Casamayor: The Ring Magazine lightweight champ faces Juan Manuel Marquez in September; if he wins he'd be a natural opponent for Pacquiao, but probably not until early next year.
Humberto Soto: On last night's undercard, Soto lost a dubious disqualification after dominating Francisco Lorenzo.
Amir Khan: Has been discussed as a possible opponent, but probably isn't ready for Pacquiao.
Ricky Hatton: It would be a huge fight, if Pacquiao is willing to move up in weight class again. This won't happen in 2008 but could happen in 2009.
