Del Piero, the World-Cup winning striker who won the Champions League and eight Serie A titles for the Turin giants, has warned that Manchester City's European ban has pushed Guardiola closer to the Etihad exit.
He said: “Pep has won in Spain, Germany and England – and if we follow that path then I think that maybe it's his destiny to go to Juve.
“Pep has won everywhere he has been – apart from in Italy. Even when he played with Brescia he didn't win a lot.
“In Italy we are following what is happening at City because there are already rumours saying that the coach and many players will leave the club.
“When that kind of quality comes onto the market then the whole of football is thinking that they can steal something. There were a lot of rumours in the summer that Pep was coming to Juve – and that talk is still happening.
“If you ask me about my feelings – I would love to see Pep in Italy.
“But I don't think Noel Gallagher will be happy with my words! Noel is a great guy and his club has one of the best coaches in the history of football, so of course he wants him to stay at City."