Liverpool defender Mamadou Sakho is urging PSG to fight harder to keep hold of their local players.
Sakho left PSG for Liverpool two years ago and remains a huge fan.
"When I see Alphonse (Aréola, of Villarreal) and Kingsley (Coman, of Bayern Munich), I just think it's a shame for Parisian supporters," Sakho told Le Parisien.
"And it's a pity for the coaches because they are great teachers who improve super talents.
"The pool is huge. But today, it's too complicated to keep it together."