Rangers sporting director Ross Wilson has already set his sights on Aberdeen midfielder Lewis Ferguson as a potential replacement for Glen Kamara, according to the Scottish Sun.
The 20-year-old has been performing well this season, having scored two goals and provided five assists in 18 appearances for the Dons.
Ferguson has been at Pittodrie for 18 months following a switch from Hamilton, and his displays under manager Derek McInnes have impressed Gers scouts.
Any move for the former Hamilton player is, though, likely to be predicated on Kamara leaving Ibrox. It is believed that representatives from at least three English clubs were in attendance last week to see the Finnish international in action against Porto.
Long term admirers Brighton, along with two Championship sides Leeds and Fulham, were there to see the 23-year-old put in a top-class display in the 2-0 win.
Manager Steven Gerrard has already revealed he is aware of interest in Kamara, and it remains to be seen whether he will move on in January. It does, though, appear that Rangers do have a replacement lined up just in case.