London Wasps flanker Joe Worsley has retired from all rugby due to a neck injury.
The 34-year-old, who racked up 78 caps for England, has decided to end his playing career.
"Last season I suffered an injury to my neck that has effectively ended my career," Worsley told Wasps official website. "Since March I have been following medical and rehab advice but it didn't help, and restarting contact work during the England World Cup Camp made it obvious that I could not continue.
"My life as a rugby player started at Welwyn under 9s and finished in an England training session - I want to say thanks to everyone who helped me on that path.
"I'm proud of what I achieved and how I played the game."
The flanker began playing for the Wasps in 1993 and has a World Cup winners medal to his name.
While enjoying a stint with England, Worsley also represented the British and Irish Lions and Barbarians.