Bradley's split-decision victory was widely criticized by fans, many media members and Top Rank promoter Bob Arum, who all claimed Pacquiao won the fight easily.
Illness forces judging change for Pacquiao-Bradley →
"This time around, I think I have to finish the business first before I become friendly to him," Pacquiao said. "We have our business to do in the ring. I have to do all I can do."
Bradley, Pacquiao look for decisive win in rematch →