He had a trial with Leicester City, but a serious knee injury quickly ended his career.

[1] "The Dog", as he is nicknamed, became a manager in the 1970s, coaching numerous clubs in South Africa, including Durban City, Manning Rangers, AmaZulu (Zulu Royals) and Santos Cape Town.

He was one of the first white managers of a black team in the South African league.

[4] Barker was a local television commentator during the 2010 FIFA World Cup.

[5] Barker was appointed manager of Bidvest Wits in January 2013.