Along the way , Vincenzo Nibali ( Astana ) cracked early , Alberto Contador could n't match his younger Colombian rival .
A new batch of riders put themselves in position to climb onto the podium when the race ends on Tuesday .
Along the way , Vincenzo Nibali ( Astana ) cracked early , Alberto Contador could n't match his younger Colombian rival , and a new batch of riders put themselves in position to climb onto the podium when the race ends on Tuesday .