Destro is currently co-owned by Siena and Genoa and his current contract expires in June 2015.
Inter Milan, Roma and Juventus are also reportedly interested in the 21-year-old forward.
“It’s not just Roma, Inter Milan and Juventus who are monitoring Mattia Destro,” Siena’s sporting director Stefano Antonelli told Sky Italia.
“Foreign clubs have also expressed an interest in him.
“He is an important player and for that reason, we need time to reflect and make the right evaluation.
“Paris St Germain are interested and there are also other clubs abroad that are very keen on the player.”