Any old Cardiff City fans will recall a George Best playing on the wing, he was the first black player I recall,1946-47, he guested for Belfast Celtic during WW2.
I seen Delephena play for Middlesborough against Glenavon in 1951, the `boro were on tour in Ireland, in goals was Ugilino a Scot of Italian parentage, also on that team was the great Wilf Mannion.