Former world heavyweight champion David Haye announced his retirement from the sport on Tuesday following his defeat by Tony Bellew in May.
The 37-year-old Briton won 28 and lost four of his 32 fights since turning professional in 2002.
"Today I announce my retirement from professional boxing. They say you can't play boxing. Yet, as I write this retirement statement, and reflect on my time in the sport, I can't find a better way to describe the ride... ," Haye said in a statement on his website.
"This is not the end of my story. It's simply the start of something new."