Boxing legend Manny Pacquiao (C) weighs in Kuala Lumpur, Malaysia, July 14, 2018. The highly anticipated fight between Manny Pacquiao and Lucas Matthysse, the Argentinean World Boxing Association (WBA) welterweight champion will take place on July 15 at the Axiata Arena in Kuala Lumpur. (Xinhua/Chong Voon Chung)

Lucas Matthysse, the Argentinean World Boxing Association (WBA) welterweight champion, weighs in Kuala Lumpur, Malaysia, July 14, 2018. The highly anticipated fight between Matthysse and boxing legend Manny Pacquiao will take place on July 15 at the Axiata Arena in Kuala Lumpur. (Xinhua/Chong Voon Chung)

Lucas Matthysse (R), the Argentinean World Boxing Association (WBA) welterweight champion, and Manny Pacquiao (L) of Philippines weigh in Kuala Lumpur, Malaysia, July 14, 2018. The highly anticipated fight between Lucas Matthysse and boxing legend Manny Pacquiao will take place on July 15 at the Axiata Arena in Kuala Lumpur. (Xinhua/Chong Voon Chung)

Lucas Matthysse (R) , the Argentinean World Boxing Association (WBA) welterweight champion and boxing legend Manny Pacquiao stare as they weigh in Kuala Lumpur, Malaysia, July 14, 2018. The highly anticipated fight between Matthysse and Pacquiao will take place on July 15 at the Axiata Arena in Kuala Lumpur. (Xinhua/Chong Voon Chung)