Manchester United loanee Amad Diallo has suffered an injury whilst on loan at Rangers.
The Ivorian, 19 moved north of the border during the January transfer window, but has not featured in Rangers' last four league matches.
Giovanni van Bronckhorst has now confirmed the 19-year-old will miss Wednesday's trip to St. Johnstone or the weekend's Ibrox encounter with Aberdeen.
"Ramsey, Davis, Amad, Jack and Helander are not available for tomorrow. Hopefully he [Ramsey] will join the team very soon," the Dutchman said.
"He is already working out on the pitch again. He is very disappointed and looking forward to a return. Helander and Jack should be back for the weekend, Amad next week."
Van Bronckhorst recently discussed Amad's struggles in Scotland, stating his belief that the former Atalanta winger was getting stronger in a tough environment.
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