Defending Tour de France champion Carlos Sastre has exclusively told CNN that he does not care what happens in the alleged dispute between rivals Lance Armstrong and Alberto Contador at Astana — and is only concentrating on retaining his title. On Sunday night, seven-times Tour champion Armstrong told French TV that there was tension between himself and 2007 winner Contador, the latest in a series of comments made by the American that has raised doubts about the Astana team’s togetherness during the three-week race.
