s and z II

X is regarded as one of the best footballers of all time and a legend in his club Y ,voted amongst the best ever to have played for Y. X remains the only one from his nation to be inducted into the English Football Hall of Fame. To honor da man, when Y moved into a new stadium the first match they played was labelled as his tribute match and therefore the opponents were X's former club Z. ___ Card. Fill in the blank to get the question. Getting the answer is optional. (For extra points , choose the correct option. Mudd may/should/need/can/will not answer. )