What was the Spanish doctor called, who was behind blood doping of Jan Ullrich and Ivan Basso, amongst others?

Explanation

Tour de France 2006 was hit by a major doping scandal, known as Operación Puerto, before the start of Tour. A Spanish doctor, Eufemiano Fuentes, was found to be systematically organising blood doping. Nine riders were excluded from the race, including the stars Jan Ullrich and Ivan Basso, who, until then, had been amongst the favourites to win that year's tour.