Armstrong admits tension at Tour with Contador

Cool as a cucumber: Alberto Contador (Astana) speaks to Lance Armstrong (Astana) on the way up Mont Ventoux

Cool as a cucumber: Alberto Contador (Astana) speaks to Lance Armstrong (Astana) on the way up Mont Ventoux (Image credit: Bettini Photo)

Seven-time Tour de France winner Lance Armstrong admitted there was "real tension" within his team Astana at the Tour de France last month. The team won the race with Alberto Contador, but the process of determining the team leader created problems.