Manny Pacquiao's long-time trainer is concerned that the Filipino's fighting career is truly over

• Manny Pacquiao's fighting career may well be over.
• The Philippines Senator boxed Saturday, but lost a clear 12-round decision to Yordenis Ugas.
• His long-time boxing coach Freddie Roach fears his days in the sport are numbered.

Manny Pacquiao's long-time trainer is concerned that the Filipino's fighting career is truly over.

The 42-year-old, who is one of the sport's all-time great boxers, returned to the ring Saturday after a 25-month absence but looked like age had finally caught up with him.

He was outgunned by Cuba's Yordenis Ugas over 12 rounds.

Pacquiao dropped a convincing loss by decision to Ugas, who dictated the match with his physical assets, and his jab, to earn scores of 116-112, 116-112, 115-113 from the judges.

While Ugas can move into a likely welterweight world title unification bout with Errol Spence Jr., it is unclear what the future holds for Pacquiao.

"You know, I'm a little bit worried about it, yes," boxing coach Freddie Roach said, according to Boxing Scene.

"He's boxed a long, long time, and he's boxed with me for a long time. And he's my best customer I've ever had. He's the best guy, the best fighter."

Roach and Pacquiao first met when the fighter was a scrawnier super bantamweight back in 2001.

Back then, Pacquiao was yet to break into the American boxing market.

But as soon as Roach took him on the pads in his Wildcard Boxing Club in a rundown part of Los Angeles, and felt "firecrackers" go off in his mitts whenever Pacquiao punched them, he knew his life was about to change forever.

Fast forward 20 years and the pair have written many of the fight game's most immortal, modern-day moments from Pacquiao's breakthrough pay-per-view success when he beat Oscar de la Hoya in 2008, to the four-fight rivalry with Juan Manuel Marquez, and then his status as a five-time welterweight champion - his eighth weight class.

Pacquiao first became a world boxing champion in 1998, and has enjoyed a champion's status in the 2000s, 2010s, and 2020s.

But Saturday's setback to Ugas in his 72nd pro bout may well be his last.

"You know, I hate to see that day when he retires," said Roach. "But this could be it. He didn't have a great performance - but we'll see what Manny decides."

Contemplating his own future, Pacquiao said last weekend: "In the future, you may not see Manny Pacquiao in the ring."