Eight division world champion Manny Pacquiao has no interest in fighting on Top Rank's planned card for April 14 at the Mandalay Bay Events Center in Las Vegas.

Pacquiao was being lined up to face former junior welterweight champion Mike Alvarado, in a co-featured slot to Terence Crawford's challenge of WBO welterweight champion Jeff Horn.

Both fights would be carried on ESPN as part of a pay-per-view event.

Pacquiao has been out of the ring since July of 2017, when he lost a controversial twelve round unanimous decision to Horn at the Suncorp Stadium in Brisbane, Australia.

Rumors of Pacquiao's departure from the card began to circulate earlier this week, when it was revealed that the Filipino star had not started training camp and there was no communication between the boxer and his longtime trainer Freddie Roach.

Pacquiao apparently rejected the idea of facing Alvarado on the card, because the boxer felt insulted when offered a non-main event role - especially since the boxer believes he was the rightful winner of the bout with Horn, and Pacquiao would have been the biggest ticket seller on the card.

"No he's not fighting Alvarado," Aquiles Zonio, Pacquiao's media relations officer said in a message to ESPN5's Lyn Olavario. "He rejected Bob Arum's offer to fight [in the] undercard of the Crawford-Horn fight."

"It's an insult to him. The world knew who won that dirty fight in Brisbane. It was the biggest broad daylight boxing heist."

With Pacquiao off the show, there is talk that Top Rank's CEO Bob Arum may replace him with International Boxing Federation super flyweight champion Jerwin Ancajas, in a possible fight with mandatory challenger Jonas Sultan of Cebu. It would be the first world title bout between Filipinos in 93 years.

Earlier this week, the Ancajas camp was advised by Top Rank, who signed the boxer to a three-fight contract, to be on standby for a possible fight on April 14.