The 35-year-old, who made more than 100 appearances for the Potters during two spells at the club, took to Twitter to confirm he was hanging his boots up.
The time has come for me to hang up my boots. I have enjoyed my career and the main reason is because I have given everything I have.
I was never the most technically gifted player so it was always hard work that got me through. Recently I have feared getting hurt and thats
I have met some great friends and played for some great clubs. It's been an honour and a pleasure but the time has come for my next chapter