 Complete the following phrase:  During his time with Roma, Di Francesco also made 12 appearances for the Italian national team between 1998 and 2000, and was called up for a total of 16 times. He received his first call-up while with Piacenza, under manager Cesare Maldini, when he was named in Italys squad for 1997 Tournoi de France, although he later turned down the offer in order to help Piacenza defeat Cagliari 31 