Sky Sports understands Rangers and two Championship clubs are tracking Motherwell midfielder Steven Jennings.
Jennings' current deal expires at the end of the season and a number of clubs are waiting in the wings to sign the 27-year-old on a free transfer.
Motherwell are keen to keep hold of one of their key men and have opened talks about a new deal at Fir Park.
Jennings has established himself as one of the best midfielders in the SPL since arriving from Tranmere in 2009 and he has been instrumental in Motherwell's push for a top three finish this season.
Rangers are looking for bargain signings next summer due to their financial problems and with Jennings being available on a free transfer he would be an attractive proposition for Ally McCoist.
Jennings' agent, Jonathan Hope, has admitted the defensive midfielder would be a good option for Rangers, but that he is also talking to two Championship clubs about a possible move.
"Jennings, in my opinion, is the most consistent midfielder in the SPL and has been for the past two years," Hope told skysports.com.
"I am aware of reports that Rangers were monitoring him, but I won't know until I catch up with Ally McCoist.
"They could only have been impressed with him last week as he stood out a mile.
"Motherwell have opened contract talks over a new deal, but I am also talking to two Championship clubs and I only recently found out an Australian team would like to talk to us.
"We will assess all the options and it will be down to the player where he wants to go or stay.
"At this time he is a Motherwell player and he continues to give his all for the club."