This 7-time Tour de France champ said the 2006 NYC Marathon was the "hardest physical thing" he'd ever done
In his marathon debut, the seven-time Tour de France champion ... a doubt 
the hardest physical thing I have ever done," said Armstrong, who... [DOC] [TLE] Cycling Capsules: Anti-doping officials want Armstrong under oath ... [PAR] Jan 15, 2013 ... Interviewer Oprah Winfrey didn't say if the subject was broached during the 
taping ... Around the same time, World Anti-Doping Agency officials issued a ...