AC Milan are regarded as favourites to land the Swede.
But Cruz said of his former teammate: "Milan? Bologna? In Argentina they talk about him for Boca...
"But if he asked me I would tell him something different.
"I have to tell him that if he had to choose the Argentine championship, well, don't go to the wrong side: because if he wants to win he must go to River Plate..."
Interestingly, Cruz also told Gazzetta dello Sport: "There is always Juan Manuel, my son: he often scores goals, they wanted to make him a €20m buyout clause and in the end we went down to 10. In a little while you will also hear about him: I must admit, he's good."
Juan Manuel, 20, signed pro terms with Banfield in July.