The Italian newspaper states that the Serie A champions are planning to make major changes to their squad in the final days of the transfer window.
Juve sold Arturo Vidal and Pirlo this summer while new transfer Sami Khadira has been ruled out for at least two months with an injury.
Gündoğan wrapped up the season with five assists and three goals in 33 appearances in all competitions.
Juventus won the Italian Serie A title last season with a 17 point gab between second placed Roma and reached the UEFA Champions League final.
The Bianconeri’s were defeated 3-1 by Barcelona in the final which was played at the Olympiastadion in Berlin. Juventus take on Udinese in their opening game of the 2015-16 season.