Pacquiao, 39, has fought four bouts since battling Mayweather, 41. He defeated Lucas Martin Matthysse by technical knockout for the welterweight title in July and also has wins over Timothy Bradley Jr. and Jessie Vargas. His lone loss came against Jeff Horn by unanimous decision in 2017.
After defeating Matthysse, Pacquiao called out Mayweather, who said his boxing victory over MMA star Conor McGregor would be his last fight.
“Mayweather? If he decides to go back to boxing then that is the time we are going to call the shots,” Pacquiao said, via ESPN. “I have the belt, so it’s up to him. If he wants to come back in boxing let’s do a second one.”