Paris Saint-Germain starlet Stanley Nsoki has rejected an offer to sign his first professional contract with the club.
The 19-year-old defender has been the focus of transfer interest of two major European sides, though PSG are unwilling to offload the promising youngster to a rival club.
Nsoki made his first-team debut for the Parisians last season as a substitute during a 3-0 home victory over Caen having graduated through the club's academy and recently featured in the club's International Champions Cup defeat to Bayern Munich.
PSG are determined to hold onto to the France youth international having already lost Claudio Gomes to Manchester City in January.
Nsoki has just one year left on his current trainee contract, however, and Goal understands that he has informed the club's sporting director, Antero Henrique, that he will not be signing the deal offered to him.
Should the defender fail to agree terms to stay on in Paris, or the club choose not to sell him during the summer transfer window, then he will be free to discuss a move away from January.
PSG have already seen a number of players leave the club this summer, with Javier Pastore's €24.7 (£21.7m/$28.2m) million switch to Roma the most lucrative for the club.
Yuri Berchiche returned to Spain after just a year at Parc des Princes, joining Atheltic Bilbao for €24m (£21m/$28m), while another product of the club's youth system, Odsonne Edouard, joined Celtic on a permanent deal worth €10.3m (£9.1m/$12m) having spent last season on loan in Glasgow.
PSG made the high-profile capture of Juventus goalkeeper Gianluigi Buffon, however, who joins Kylian Mbappe after the France forward's loan deal becomes a permanent one.
Thomas Tuchel's spell in charge of the Ligue 1 side kicks off with a home tie against Caen on August 12 before a trip to Guingamp six days later as they look to retain their top-flight crown.