Karim Rekik and Luca Scapuzzi have been loaned out to Portsmouth until the end of the season.
With nine games of the season to go, Pompey are bottom of the Championship and currently six points adrift of safety.
Having signed from Feyenoord last summer, Rekik became City’s youngest ever overseas player when the Dutch defender made his debut against Birmingham City in September, aged just 16 years and 294 days.
20-year-old Luca made two appearances for City in the Carling Cup last autumn before a three-month stint with Oldham, where he scored twice in 17 games under Paul Dickov.