The curtain has been drawn on one of boxing’s finest careers after Manny Pacquiao announced on Wednesday he was hanging up the gloves for good.

The only boxer ever to win world titles in eight different divisions, the 42-year-old Filipino described retiring as the “hardest decision” he’s ever made.

Pacquiao departs the sport with a record of 62 wins (39 KOs), eight losses and two draws, and as the only fighter to hold world titles in four different decades.

The news comes just over a week after Pacquiao announced he would be running for president of the Philippines in 2022.

Already a senator in his home country, Pacquiao took to social media to inform fans of his decision.

“It is difficult for me to accept that my time as a boxer is over,” Pacquiao said.

“Today, I am announcing my retirement. I never thought that this day would come.

“As I hang up my boxing gloves, I would like to thank the whole world, especially the Filipino people, for supporting Manny Pacquiao.

“Goodbye, boxing.”

Among his countless achievements, Pacquiao boasts wins over some of boxing’s biggest names including Juan Manual Marquez, Oscar De La Hoya, Ricky Hatton, Miguel Cotto and Shane Mosley. More recently he defeated Keith Thurman to become the oldest welterweight champion at age 40.

His much-hyped 2015 fight with Floyd Mayweather remains the best-selling pay-per-view event of all time.

In his departing speech, Pacquiao made special mention of his late former manager Rod Nozario, as well as legendary trainer Freddie Roach.

“And I will never forget the one person who helped me, Rod Nazario, who was once my manager,” Pacquiao said.

“He brought me to the United States 20 years ago and arranged my introduction to my trainer Freddie Roach at Wild Card Boxing Gym.

“Freddie Roach was not only my trainer, but also my family, a brother and a friend.”

Pacquiao will now turn his attention to his political career, where he has been nominated as a potential successor to current president Rodrigo Duterte.