The Paraguayan defender is now beginning to prove his worth with the Giallorossi.
"I have been following his games. I saw a great performance by Ivan, who confirmed the extraordinary work he showed against Fiorentina at the weekend," Giuseppe Addamiano told GazzettaGiallorossa.
"Ivan is only 23 years old, but despite everything, he has already played over 200 games at the top level in South America, not to mention his experience with the national team, where he is a starter and he played in the Copa America Final.
"He is a serious guy and a professional. When he goes on to the field, he never spares any effort."