Hailing from Dafen, Carmarthenshire,[1] Letheren started his career at Leeds United.
On 24 October 1973, he made his senior debut in a 0–0 draw against Hibernian in the UEFA Cup.
[3][6] Despite being called up to the Wales senior team, he never achieved a full international cap.
[1][2] Additionally, he ventured abroad to work in Australia, Haiti, and St.
This biographical article related to association football in Wales, about a goalkeeper, is a stub.