Foster quietly jetted out of the country at the beginning of the month for a two-week assessment at Ligue 1 giants AS Monaco.
The 17-year-old striker made his professional debut just three months ago, coming on in Pirates' goalless draw away to Maritburg United, and has since managed three more appearances, before picking up a knee injury.
However, the Bucs academy graduate has already attracted suitors, with the eight-time French champions having invited him to train with their reserve team.
Foster has since returned home, where he is in the middle of his Grade 11 final exams, but word is that he managed to impress the coaches and technical staff at the club and is likely to head back for a further assessment next year.
The teenager from Noordgesig, Johannesburg is hoping to become the second Buccaneer to move to France, following Kermit Erasmus's move to Rennes in January 2016.
Bongani Zungu, Keagan Dolly, Lebogang Phiri and Lebo Mothiba are other South Africans currently playing their trade in France.