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Rangers recruitment chief Nils Koppen has admitted that from a financial point of view, operating in the UK transfer market is getting tough for the Gers.
Money was tight at Ibrox in the recent summer transfer window and boss Philippe Clement had to move players out to create space to bring in fresh faces.
Players such as Connor Goldson and Todd Cantwell, who had been key men at Rangers, both left the club, while Scott Wright was another departure.