Ricky Hatton's son Campbell shared that heartbroken isn't the word as he paid an emotional tribute to his father.
Former world champion Hatton was found dead at his home in Greater Manchester on Sunday.
Investigators stated there were not any suspicious circumstances surrounding the 46-year-old's passing.
In his earliest public comment since the loss, Campbell posted a series of images on social media on this week and expressed: "This loss is beyond expression.
"Many has always remarked I was your double - never a more accurate word said. Admired you in every aspect of life.
"It's impossible to describe how much I'm going to long for the laughs we had and all the memories, which I will remember forever. Just can't accept we won't have any more. Miss you, Dad."
Sports Career
The athlete won 45 of his 48 career matches during a successful boxing journey, and was world champion at 140-pound and welterweight divisions. He most recent match as a pro in 2012, though had planned to make a comeback into the arena in October.
Nicknamed 'the Hitman', he established himself as a hugely popular fighter with character inside and outside the ring - an reported 30,000 fans travelled to watch his title fight against the legendary Floyd Mayweather in Nevada in 2007.
Campbell was additionally a pro fighter and won his first 14 bouts. He retired in recent months.
Family Message
The boxer's family released a announcement on the following day in which they spoke of the outpouring of love and kindness towards him.
"He had a soul as large as his grin, and his generosity, wit and dedication impacted everyone who was blessed enough to know him," the statement read.