Conversation so far:
What is a Giro-Tour Double for Eddy Merckx?
Merckx also became the third to accomplish the feat of winning the Giro d'Italia and Tour de France in the same calendar year.
Did Eddy Merckx tour in the U.S.?
Eddy Merckx never toured in the U.S.
Where did Eddy Merckx tour?
Tour of France, Tour of Italy, and Tour of Spain
Were any awards won by Eddy Merckx?
Eddy Merckx's victories include an unequalled eleven Grand Tours (five Tours of France, five Tours of Italy, and a Tour of Spain)

Question: Was there any doping issues?
Self-contained rewrite: Was Eddy Merckx involved in any doping issues?