The ex-Coventry and Celtic star revealed how his inability to cope with life away from the spotlight led to amphetamine addiction and a lack of self-esteem, which later saw him arrested for possessing bodybuilding drugs and buying sex from prostitutes.
Now fit and healthy and looking after his two boys, the 39-year-old has released an autogbiography with journalist Gunnar von Sydow called "När ljuset släcks" which means "when the lights go out."
"The problem I had with retiring was my identity. I didn't know who I was, I had always been the goalkeeper and I struggled with that and it led me to one mistake after another," he told Radio Sweden's Dave Russell.
"I was digging myself deeper and deeper to becoming more and more depressed."