I don't get the Rossi hate, really. I guess smaller football nations feel it more deeply when one of their more promising prospects decides to play for the heritage nation instead of the land of their birth, but that happens all the time, for example with Argentineans playing for Italy, and people don't really show that level of vitriol against the player. But maybe that's because there's a dozen guys behind him at the same level. If Maradona had done it would be a different story maybe.
Anyway, in terms of talent he would be one of the best players we've ever had, so I would say if he's fit maybe low-level TAM because of the injury history. He's 31 but his knees are 90 I guess.