Former professional cyclist Michael Boogerd, one of the Netherlands’ most popular riders, has admitted doping for a decade during his career.

Boogerd says he used the banned blood booster EPO, cortisone and, late in his career, blood transfusions.

The confession, in an interview with national broadcaster NOS being aired Wednesday, came after several reports linked the former Rabobank rider to doping practices.

The rider says “the period I used banned substances was from ‘97 to 2007, the end of my career.”