To prepare for competition, riders would often train in the mountains to boost their red blood cells, take out a bag or two, and then be ready to transfuse them during a tour.
Lehiarako prestatze aldera, sarri txirrindulariak mendietan entrenatzen ziren zelula gorrien produkzioa areagotu, poltsa bat edo bi atera, gero Tourrean transfusioa egiteko.