Born in Llanelli, Wales, Letheren joined Leeds United at Under-18s level in 1973 and stayed with the club until 1977.
Representing Wales at U23s level, he would spend the final year of his time with the Whites on loan at Scunthorpe, making a total of 31 appearances for the side during the spell, with 27 coming in the league and four in the League Cup.
After departing Elland Road permanently, he would play for Chesterfield, Swansea City, Blackpool, Oxford City and Scarborough, before completing his playing career back in Wales, featuring for Bangor City and Llanelli Town.
In addition to football, Letheren was also a successful cricketer in the South Wales Cricket Association, playing mainly for Dafen Welfare CC, as a medium pace bowler and middle order batsman.
The thoughts of everyone at the Iron are with Glan’s friends and family at this sad time.
