SafeBet said:
There's nothing dirty in exploiting your opponent's weaknesses. It's the basis of the sport, of any sport actually.
If I'm Astana, I surely test Contador's conditions in the last 30 kms.
Visconti will be eager to wear pink today and he's in monster shape. So yeah, Movistar cuold play a big role today.
I'm also expecting Kung to give it a go.
It isn't dirty, and it is not cheating, but I think it is pretty unsporting. Since cycling has a code of respect for the leader's jersey, I think there might be the view that neutralising the day in a three week race does not come at real cost to the other GC contenders, and hence is the 'right' thing to do. Saturday, all bets will be off.
I'm not sure I would want to 'win at all costs' - but then, there's a reason I'm not an elite sportsman! And if any teams do put the hammer down, I think they would be inviting a certain amount of ill-feeling. Maybe they wouldn't care.