British boxer Ricky Hatton, a popular former world champion at two weight classes who was attempting a comeback to the ring later this year, has died. He was 46.

No immediate cause of death was given for Hatton, but the BBC reported that Greater Manchester Police confirmed in a statement Sunday that a body was discovered at a home in Hyde following a call from a neighbor, but “the death is not being treated as suspicious.”

Former boxing world champion Ricky Hatton has died at 46, according to reports. Getty Images

Hatton won titles at light-welterweight and welterweight, before retiring in 2012. Action Images via Reuters

Hatton had been open about his struggle with depression, drinking and drugs. Getty Images

Hatton posted himself training on Instagram. Instagram/@rickyhitmanhatton

The video was posted on social media days before his body was found. Instagram/@rickyhitmanhatton

Nicknamed “The Hitman,” Hatton’s professional career spanned from 1997-2012, and his lifetime record of 45-3 included championships as a light-welterweight and welterweight and 43 consecutive wins before late losses to Floyd Mayweather Jr. (in 2007 in Las Vegas), Manny Pacquiao and Vyacheslav Senchenko.

Hatton has been very open in retirement about battles with depression, mental-health issues, alcohol and drugs, but he had been in training for a scheduled comeback bout as a middleweight against Eisa Al Dah in Dubai in December.

“I was coming off the rails with my drinking and that led to drugs. It was like a runaway train,” he told BBC radio in 2016, according to Reuters.

“The death is not being treated as suspicious,” a spokesperson for the Greater Manchester Police said. PA Images via Getty Images

Hatton had 45 wins in 48 bouts over his career. Action Images via Reuters

Manny Pacquiao (left) poses for a photo with Ricky Hatton during a press event at a local pub in Manchester in 2009. Offside Sports-US PRESSWIRE

Hatton famously was a massive supporter of Manchester City FC and was close friends with Noel and Liam Gallagher of the band Oasis.

Man City announced it would honor Hatton before Sunday’s derby match against rival Manchester United.

British boxing icons Tyson Fury and Amir Khan also were among those to post tributes to Hatton on social media.

Ricky Hatton (right) was scheduled to make a comeback in Dubai later this year. Getty Images

“I was coming off the rails with my drinking and that led to drugs. It was like a runaway train,” he told BBC radio in 2016. Getty Images

“RIP to the legend Ricky Hatton, may he RIP. There will only ever be one Ricky Hatton. Can’t believe this, so young,” Fury wrote on Instagram.

“Today we lost not only one of Britain’s greatest boxers, but a friend, a mentor, a warrior,” Khan posted on X. “As fighters, we tell ourselves we’re strong — we train, we sweat, we take hits, we get up.

He had a perfect 43-0 record until he was floored by Floyd Mayweather Jr. in 2007. WireImage

Floyd Mayweather Jr. punches Ricky Hatton during their WBC welterweight boxing title fight in Las Vegas, on Dec. 8, 2007. AP Photo/Isaac Brekken

“But sometimes the hardest fight happens in silence, in the mind. Mental health isn’t weakness. It’s part of being human. And we must talk about it. We must reach out. We must lean on each other.”