In summer 2005, Torino was promoted back to Serie A; however, Torino was expelled from Serie A due to the club's financial problems, with the consequent free release of all of their players. He was signed by Internazionale as a youth team player, but two days later was loaned out to Treviso in a co-ownership deal for €35,000, in order to gain first team experience. At his new club, he partnered up with his former Torino teammate Pinga. Acquafresca made eight Serie A appearances in 2005–06 season. As part of the co-ownership deal, Acquafresca remained in Treviso for the 2006–07 Serie B season and scored 11 goals in 35 appearances. In June 2007, Inter bought back the other half of the co-ownership deal from Treviso, for €1.5 million.