Ramba uchiverenga ndima iyi - Achiri muduku, Spezza akamiririra chikwata chenyika yeCanada chevaduku kwemakore matatu akatevedzana. Akaita kutanga kwake pa2000 World Junior Championships, achiva wechitatu wechidiki ane makore gumi nematanhatu kuti aite timu muTeam Canada nhoroondo, mushure meWayne Gretzky naEric Lindros (izvi zvakaitwawo gore rimwe chetero nemudziviriri Jay Bouwmeester naSidney Crosby muna 2004). Spezza akapa 2 anobatsira mumitambo 7 sezvo Canada yakabata menduru yebronze. Akadzoka muna 2001
nokuda kwemenduru yebhuronzi yechipiri yakatevedzana, apo vaivandudza kusvika kuzvinangwa zvitatu nokubetsera zvitatu. Spezza akazviita kumutambo wegoridhe neCanada mune yake yechitatu uye yekupedzisira World Junior kuoneka muna 2002, asi akarasikirwa neRussia kuti awane sirivha.