Kammala wannan jumla: Nielsen ya cancanci shiga tawagar Denmark, tare da abokin wasansa Jakob Fuglsang, a gasar cin kofin duniya na bana.
tseren tseren maza a gasar Olympics ta 2008 a Beijing ta hanyar karɓar ɗaya daga cikin wurare biyu na ƙasar don tawagarsa daga Union Cycliste Internationale (UCI), bisa ga aikinsa na goma a gasar cin kofin duniya da kuma Mountain Bike World Series. Tare da zagaye daya ya tafi, Nielsen ya yi gwagwarmaya don kiyaye yanayinsa a cikin kilomita 4.8, mai ƙarfi, mai cin amanar ƙasa, kuma a maimakon haka ya janye kai tsaye daga tseren ta hanyar ɗaukar matsayi na talatin da ɗaya.