Speaking on the Ben Heath podcast, Murphy said: "For a while, I was [addicted to cocaine], because I got to the point where I didn't feel like I could do things without it, which was nonsense, of course I could. I did a bit of both (therapy and group sessions to get help). I had done therapy previously before I had any problems actually when I first stopped playing because I thought it would be beneficial but I didn't stick it out, which I maybe should have done.
"There are guys that I have met who have had a lifetime of trauma because of certain addictions and stuff. I probably had a year of being in a world of pain and they kind of look at me and go, 'You know what you should be really grateful you have only had a year'. And I'm like, 'I'll listen to that I'll take the good.'"