Rojo completed his own move to Boca in the January transfer window and has detailed conversations he has had with Cavani about the Uruguayan also making the move.
"I talk a lot with Cavani," Rojo told ESPN. “We were together for about four or five months in Manchester but he's a great person and we have a good relationship.
“When I came here he asked how I was doing, if I was having a good time, because he saw everything I went through in England.
“It's important that great players, the size of Cavani, who is a historical player from Uruguay and who played in very great teams, say they want to come and play at Boca.
“I think he speaks very well of the club and Argentine football.
“When I told him that there was the possibility of coming to Boca, he told me that he had also spoken with Roman and that he liked the option very much, that he would be interested in the future.
“He has to make that decision with his family."