Nyorai kuenderera mberi kweiyi ndima - Apo chikwata chake nemutungamiri Brad Jacobs chakakunda menduru dzesirivha pa2013 World Men's Curling Championship
, Matt Dumontelle akaongororwa kuti ane chirwere chinorambidzwa chinonzi methandienone, chinonzi anabolic steroid, mumuedzo wakazotevera 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.