Nicola Adams, the two-time Olympic champion and current WBO flyweight world champion, has announced her retirement from boxing at the age of 37.
Adams penned an open letter to her local newspaper, the Yorkshire Evening Post, in which she revealed that continuing her in-ring career risked "irreparable damage and permanent vision loss".
Adams became the first woman to win Olympic gold in her sport when he took the flyweight title at London 2012 and successfully defended her crown in Rio four years later.
She won the vacant WBO belt against Isabel Milan in 2018 and bows out with an unbeaten professional record of five wins and one draw.
Adams continued: "It has been an honour to compete on the global stage, and it has been a privilege to fight against such remarkable athletes. Whilst I am proud of my achievements, the unwavering belief from everyone in my corner is something I will appreciate for the rest of my life.
"To my wonderful team, I would not be the fighter I am today without your encouragement and understanding - what you have taught me goes beyond the ring. Particularly special thanks go to the wonderful Alwyn Belcher, my coach and personal mentor of many years.
"Hanging up my gloves was always going to hard, but I have never felt luckier and I'm so immensely proud of how far the sport has come."