Pacquiao has blamed a shoulder injury as the reason for his loss to Mayweather, stating the injury did not allow him use his right hand.
Mayweather, 38, who is still unbeaten in 48 professional bouts outclassed the boxer from the Philippines and was handed a wide unanimous decision.
Pacquiao, 36, said he thought he did enough to win.
“Three weeks before the fight I got a tear in my right shoulder,” he said. “It got better but it wasn’t 100%.”
Mayweather started the smarter of the two, he rocked Pacquiao and knocked him around with a number of counter punches in the early stages.
Though Pacquiao shocked Mayweather in the fourth and sixth round with a left hand, he wasn’t able to ride it out though, as Mayweather came out the winner on the judges scorecards.
Punches throws 435 429
Punches landed 148 81
Jabs thrown 267 193
Jabs landed 67 18