 In June 2012 Vassallo graduated from the reserve team and left for the fourth tier club Foligno in co-ownership deals along with Andrea Adamo for a peppercorn of €500 each.Vassallo made his professional debut in Italian Lega Pro cup.On 31 August 2012 Adamo was sold outright for €14,667 in exchange with the 50% rights of Vassallo for €500.