Rangers are weighing up moves for defensive duo Harry Darling and Conor Coady, with Robin Propper set to depart Ibrox after just one season.
New boss Russell Martin is keen to revamp the squad and make some additions ahead of the Rangers players reporting back for pre-season in just over a fortnight.
A 25-year-old centre-back who is being chased by a host of clubs in the English Championship, Darling looks likely to leave Swansea City on a free transfer after turning down a new contract.
Martin has signed Darling twice previously, firstly at MK Dons and then again at Swansea, and could now look to make it a third time at Rangers.