6. Nigel Walker
Aged 18, blisteringly fast Welshman Nigel Walker chose to focus on athletics over rugby, his other passion.
Walker went on to represent Great Britain in the 110m hurdles at the 1984 Los Angeles Olympics Games. He later won 60m hurdles bronze medals at both the European indoors and world indoors.
Aged 29 he returned to rugby where he won 17 caps for Wales, scoring 12 tries. Today Walker works as National Director at the English Institute of Sport.