career was ended by injury in 1989, by which time he had made 163 league appearances and scored 52 goals for the Stags. Personal life Before becoming a professional footballer, Cassells worked as a postman. After his retirement from football in 1989, he joined the Hertfordshire Constabulary and rose to the rank of detective sergeant. He was awarded the Police Long Service and Good Conduct Medal in 2011. Honours Mansfield Town Football League Fourth Division third-place promotion: 1985–86 Football League Trophy: 1986–87 Individual Football League Third Division PFA Team of the Year: 1981–82 Career statistics References 1957 births Footballers from Islington (district) Living people Watford F.C. players Peterborough United F.C. players Oxford United F.C. players Southampton F.C. players Brentford F.C. players Mansfield Town F.C. players English footballers Wembley F.C. players English Football League players Isthmian League players British police officers Association football forwards