"I feel as though the time is right and I wanted to retire at a good level," Murray, who is set to go into the media industry, told the official club website. "I've had a lot of good years in the game, but this seems the right time to call it a day.
"Give me six months, a year and I might miss it so much that I want to give back to the club in some capacity as a coach. But at the moment that isn't the route I am going down."