The decision has been made on the recommendation of his medical team, following extensive consultations with leading cardiologists both in the United Kingdom and Europe.
Since suffering my heart attack and being discharged from hospital, I have remained utterly positive in the belief I could one day resume my playing career and play for Bolton Wanderers once again.
As part of my on-going recovery, last week I travelled to Belgium to seek further medical advice from a leading cardiologist.
But the news I received was obviously not what I had hoped it would be and it means I am now announcing my retirement from professional football.
More top news
Rain on the way this week. Here's the latest forecast
A medic has walked free from court after he ran over and killed a father-of-four who had been punched into the road by a 16-year-old boy.
Coleen Nolan has revealed that her sister Linda has been diagnosed with secondary cancer.