Rangers manager Walter Smith has been keen to bolster his midfield after captain Barry Ferguson was ruled out for up to four months after undergoing surgery on an ankle injury.
The Ibrox club are also believed to be interested in Cardiff City defender Glenn Loovens, following the sale of Carlos Cuellar to Aston Villa.
Loovens, 24, has 12 months left on his contract with the Bluebirds.
The Championship outfit say they have received more than one bid for the former Feyenoord player, but have refused to reveal which clubs are interested.
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