MADRID (AP) - The doctor at the center of the massive Operation Puerto blood-doping trial says he may give his full list of athlete clients to authorities.
Eufemiano Fuentes told Europa Press news agency on Wednesday he would "consider collaborating" with authorities and "if that meant that they wanted my (client) list, they would get it."
So far, the 2006 police raids that led to Fuentes and four other defendants being tried on public health charges implicated more than 50 cyclists, including Alberto Contador, Ivan Basso, Jan Ullrich and Alejandro Valverde.
But Fuentes testified on Jan. 29 that he worked with athletes from various sports, including soccer, tennis, boxing and track and field.
Fuentes denies he endangered the health of the cyclists by performing blood transfusions.