Bob Arum will leave Monday for the Philippines not at all sure which opponent Manny Pacquiao will pick for his next fight. “I won’t really know until I see him,” Arum said regarding his typical practice of visiting Pacquiao in the Philippines prior to picking an opponent. “I’m going to let him make the call. It’s all up to Manny.” A rematch against Timothy Bradley (29-0, 12 KOs, 1 NC) and a fourth fight against Juan Manuel Marquez (54-6-1, 39 KOs) are believed to be Pacquiao’s top options. A less necessary rematch against Miguel Cotto could be the lucrative fight Pacquiao picks as well, but weight probably would be an issue since Cotto (37-3, 30 KOs) is completely comfortable fighting at 154 pounds and Pacquiao barely is a welterweight.