Di Natale scored his eighth goal of the Serie A season and could earn an Italy recall.
"Naturally I hope Toto' can score even more than he did last year. In football terms, he's still a youngster in my eyes. At this moment we are not as sharp as we were last term, admittedly because it makes a big difference to lose a player like Alexis Sanchez.
"As for the Nazionale, that decision is down to Cesare Prandelli."