From ESPN:
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"Now he's the big favorite,'' Armstrong said. Armstrong looked stunned when he ascended the podium to accept the leader's yellow jersey. Afterward, he seemed spent -- physically and emotionally. "I had an incredible crisis. ... I felt like I was pedaling backward,'' a flush-faced Armstrong said. Temperatures in the shade reached 97 and were far worse in the sun. "Perhaps it was too hot for me,'' Armstrong said. "I don't know. I suffered.'' "It's the thirstiest I've ever been in a time trial, right from the beginning for some odd reason,'' he said.
Armstrong was not the only exhausted rider. Immediately after crossing the finish line in fifth place, American Tyler Hamilton -- competing with a broken collarbone -- stumbled off his bike, lurched forward and vomited.