 Complete the following phrase:  A Lazio youth system product, Frezzolini never played for the biancocelesti and was instead sent on loan to several minor league teams. In 1995, he was signed by Inter as a reserve choice, and then sent on loan to Serie C1 club Trapani in 1996, and Serie B side Fidelis Andria one year later. In November 1997 he was acquired by Udinese and managed to finally make his Serie A debut on 26 April 1998, in a league game against Roma. He was successively sent on loan again, this time to Cosenza, later in the summer of 1998, and spent the second half of the 