Question: What Northern Ireland footballer was Tony Marchi an understudy to?
Sentence (from "Danny Blanchflower"): Robert Dennis "Danny" Blanchflower (10 February 1926 – 9 December 1993) was a former Northern Ireland international footballer and football manager, and journalist who captained Tottenham Hotspur during its double-winning season of 1960–61.
Relevant evidence: Yes