Yeah they'd have to play Nalbandian in this situation. Should've played him against Rafa Friday too! Although there is no way Nalbandian would ever have the stamina to take out Rafa on clay in a best of 5 format.
No they shouldn't have! This was the best chance for Argentina. Rest Nalbandian in the first day as he wouldn't have had a chance in hell against Nadal, hope Del Po beat Ferrer, win the doubles in eassy fashion and let Nalbandian win the 5th rubber.
If Nalbandian played in the first day we would have been dead tired against Ferrer.