I was always amazed at how quickly Evgeni Berzin fell off the map. After several track world titles as a Soviet amateur, he went pro in 1993, then quickly won the Giro + 3 stages + Liege-Bastogne-Liege the next year. Then for a few dazzling moments in 1996 it looked like he was going to win the TDF: he took over the yellow jersey at Les Arcs (the famous day Indurain cracked); then 24 hours later he won the mountain time trial to Val d'Isere. I remember watching that stage and thinking, "this is it, this is the Russian Greg Lemond": historically, winning a mountain time trial the day after taking yellow on a mountain road stage signals that you're going to take the whole thing. But then Berzin completely collapsed on the next, shortened stage to Sestriere, losing yellow to Riis in just 46 kilometers. By the time they reached Paris he was in 20th, 40 minutes behind, and he never won a pro race again.