He added that there’s “no reason” the fight should fall apart, reinforcing earlier claims from his team that Mayweather has already accepted upfront money tied to the matchup. Pacquiao didn’t stop there. When addressing Mayweather’s long-standing “TBE” (The Best Ever) claim, he pushed back directly, questioning what separates Mayweather from other undefeated fighters. “There are a lot of fighters who retired undefeated,” Pacquiao said. “If you’re proclaiming yourself to be a G.O.A.T., in which part can you claim that you’re the only one?” He pointed instead to his own accomplishments, including being the only boxer to win world titles in eight weight divisions and across four different decades. The comments arrive as Mayweather and Pacquiao prepare for a rematch originally scheduled for September 19 and expected to stream on Netflix. Their first fight in 2015 was one of the highest-grossing events in boxing history, ending in a decision victory for Mayweather.…