Wuxuu xirfadiisa ciyaareed ka bilaabay horyaalka Swedish Elite League ee Färjestads BK iyo kooxaha Horyaalka Junior ee Sweden. Sanadkii 1998 kii
Berglund wuxuu noqday xulashada saddexaad ee New Jersey Devils, isagoo lagu doortay wareegga labaad isagoo ahaa 37-aad ee guud ahaan. Wuxuu sii waday inuu u ciyaaro Färjestad ilaa 2001, markii uu la saxiixday Devils. Wuxuu ka ciyaaray horyaalka hoose ee Albany River Rats, kooxda Devils, laakiin wuxuu bilaabay inuu u ciyaaro Devils naftooda xilli ciyaareedkii dambe. 1-dii Maarso 2004, isaga iyo saaxiibkiis Victor Uchevatov waxaa loo beddelay Florida Panthers si ay ugu beddelaan Viktor Kozlov.