Pedzisa mutsara unotevera: Apo chikwata chake naKaputeni Brad Jacobs chakakunda menduru dzesirivha pa
2013 World Men's Curling Championship, Matt Dumontelle akaongororwa kuti ane chirwere chinorambidzwa chinonzi methandienone, anabolic steroid, mumuedzo unotevera mutambo wepasi rose wegoridhe uye akarambidzwa kwemakore maviri, chirango ichi chinopera musi waMay 6, 2015. Kusvikira panguva iyoyo akanga asingakwanisi kubatanidzwa mumutambo upi noupi uri rutivi rweCanadian Anti-Doping Program.