With Connor Goldson seemingly running down his contract, Rangers boss Giovanni van Bronckhorst will be keen to bring in a new centre back.
Even if Goldson chooses to stay, though, the Light Blues are still short of options in the middle of defence so signing a player to fill that problem area will likely be considered.
Considering the Scottish champions will be working on a tight budget, Director of Football Ross Wilson may well be considering players whose contracts expire in the summer.
Press the next page as we look at four centre-halves who could be signed on the cheap in January or on a free transfer ahead of next season.
An Ex Chelsea Player, A Former Arsenal Target: 4 Cheap Centre Backs Rangers Could Sign In January Or Next Summer