Dalla Costa made his first team debut during the season. In January 2007 Inter sold half of the registration rights to Pro Sesto for a fee of €500 (Federici also sold for €500),Crediti – Compartiecipazioni ex art.102bis NOIF, FC Internazionale Milano 2006–07 bilancio (Report and Accounts), Require Purchase in CCIAA and Pro Sesto striker Aiman Napoli joined Inter in exchange for €70,000. In 2007–08 Serie C1 he played 15 times. Dalla Costa then spent 2008–09 season at Seconda Divisione (ex- Serie C2) side Sangiovannese, which he mainly as a substitute.
