Van Houts' B-sample also positive for Clenbuterol

Rudi van Houts (Multivan Merida Biking Team)

Rudi van Houts (Multivan Merida Biking Team) (Image credit: Daniel Geiger)

Rudi van Houts' B-sample has also returned a positive result for banned substance Clenbuterol, and the Dutch cycling federation (KNWU) has suspended the mountain biker.