The 19-year-old centre-back progressed through the ranks at Paris Saint-Germain and has already tasted silverware having helped PSG lift the International Super Cup in 2019.
Soh has produced impressive displays on the international stage for the French national team from Under 16 to Under 19 level and captained the Under 18 side on numerous occasions.
Soh now joins up with Sabri Lamouchi's squad ahead of Saturday's Sky Bet Championship opener against Queens Park Rangers.