Cavani is off contract this month and a confirmed target for Salernitana.
However, Riquelme said of the former Napoli star: "Cavani was born to play in the club, but being able to afford him is another story.
“We dream of signing these players, but it's complicated. We'll take care of our club. We had debts, but in two years, we managed to put together a great team and we are happy with what we have. Arturo Vidal and Alexis Sanchez are also stars.
"How could I say that I wouldn't like to have them here? However, being able to sign them, is another thing."