Manny Pacquiao eyeing potential fight with Terence Crawford or Errol Spence Jr.

Manny Pacquiao's return to the ring is still a few days away, but he's apparently already thinking about his future in the sport. 

Ahead of his big pay-per-view bout this weekend against Yordenis Ugas, Pacquiao, 42, said he's not sure if he will continue boxing — although he told ESPN KnockOut he has an idea of who he would like to face.

"I don't know if this is going to be my last (time in the ring), we are going to see fight by fight," he said in the interview. "But if I have the possibility of making one more fight, then I would like to face the best — either Terence Crawford or Errol Spence."

Pacquiao was originally slated to fight Errol Spence Jr. on Saturday at the MGM Grand in Las Vegas, but the welterweight champ was forced to withdraw earlier this month due to an eye injury. Ugas, who was originally on the undercard for Saturday, moved up to take the fight with the all-time great. 

Per Caesars Sportsbook, Pacquaio is favored at -360 over Ugas for Saturday's bout.